Physics High School

The acceleration of a baseball pitcher's hand as he delivers a pitch is extreme. For a professional player, this acceleration phase lasts only 50 ms, during which the ball's speed increases from 0 to about 90 mph, or 40 m/s.

What is the force of the pitcher's hand on the 0.145 kg ball during this acceleration phase?

Answers

Answer 1
Final answer:

The force by the pitcher's hand on the ball during the acceleration phase is found using Newton's Second Law of Motion and is calculated to be 116 Newton.

Explanation:

The force exerted by the pitcher's hand can be found using Newtons Second Law of Motion which states that the force acting on an object is equal to the mass of the object times its acceleration.

it can be expressed as

F = m * a

Here, the mass (m) is 0.145 kg, and the acceleration (a) can be found using the formula a = Δv/Δt, where Δv is the change in velocity (40 m/s) and Δt is the change in time (50 ms or 0.05 s).

So, a = 40/0.05 = 800 m/s², and then the force F = 0.145 * 800 = 116 N. Therefore, the force of the pitcher's hand on the ball during this acceleration phase is 116 Newton.

Learn more about Physics of Acceleration here:

https://brainly.com/question/30762941

#SPJ12

Answer 2
Final answer:

The force of the pitcher's hand on the ball can be calculated using Newton's second law of motion.

Explanation:

The force of the pitcher's hand on the ball can be calculated using Newton's second law of motion, which states that force equals mass times acceleration. In this case, the mass of the ball is 0.145 kg and the acceleration is the change in velocity divided by the time interval. The change in velocity is 40 m/s (the final velocity) minus 0 m/s (the initial velocity), and the time interval is 50 ms (or 0.05 s). Therefore, the force can be calculated as:

Force = mass × acceleration = 0.145 kg × (40 m/s - 0 m/s) / 0.05 s = 0.116 N.

So, the force of the pitcher's hand on the ball during this acceleration phase is approximately 0.116 Newtons.

Learn more about Newton's second law of motion here:

https://brainly.com/question/13447525

#SPJ11

Related Questions

A satellite with a mass of 5.6 E 5 kg is orbiting the Earth in a circular path. Determine the satellite's velocity if it is orbiting at a distance of 6.8 E 5 m above the Earth's surface. Earth's mass = 5.98 E 24 kg; Earth's radius = 6.357 E 6 m.

A) 6,800 m/s
B) 7,200 m/s
C) 7,500 m/s
D) 7,900 m/s

Answers

Answer:

C) 7,500 m/s

Explanation:

The satellite's acceleration due to gravity equals its centripetal acceleration.

v² / r = GM / r²

Solving for velocity:

v² = GM / r

v = √(GM / r)

Given:

G = 6.67×10⁻¹¹ m³/kg/s²

M = 5.98×10²⁴ kg

r = 6.357×10⁶ m + 6.8×10⁵ m = 7.037×10⁶ m

Substituting the values:

v = √(6.67×10⁻¹¹ × 5.98×10²⁴ / 7.037×10⁶)

v = √(5.67×10⁷)

v = 7500 m/s

Other Questions
Please explain.A quiz has 3 multiple-choice questions with 4 possible answer choices each. For each question, there is only 1 correct answer.A student chooses each answer at random. What is the probability that the student will answer all three questions correctly? Two football players are pushing a 60 kg blocking sled across the field at a constant speed of 2.0 m/s. The coefficient of kinetic friction between the grass and the sled is 0.30. Once they stop pushing, how far will the sled slide before coming to rest? Line m passes through the points (3.7) and (6, 12) while line n passesthrough the points (-5, 1) and (-2, 6).Which statement accurately describes the relationship between the twolines? what is the purpose of algebraic expressions? Which of the following is a good pre-reading question to ask yourself when you are presented with a business document?A. Does my supervisor know about this?B. Who is the audience?C. Is this interesting?D. What file should this go in? Write an equation of a line in point-slope form that is perpendicular to the line y=1/2x-7 and goes through the point (4,-3) Please help with these partial sum questions?? 100 PT QUESTION PLEASE HELP I WOULD REALLY APPRECIATE ITLeo and Kamran go to high school together. There are a total of 1000 students in their grade. Out of the 6 periods they have, only 2 of their classes can be together. What is the percent probability that Leo and Kamran have a class together? What is the best definition of a triangle? Match the leaders to their goals at the Paris Peace Conference. Tiles President Woodrow Wilson of the United States Prime Minister Orlando of Italy Prime Minister David Lloyd George of Britain Prime Minister Clemenceau of France You examine the schedule for your favorite soccer team. The team plays 16 games each season. Later, you try recalling that schedule for a friend who likes the same team you do. Chances are, you will recall opponents at the beginning of the schedule particularly well. This is an example of the _____ effect. For a moving object, the force acting on the object varies directly with the object's acceleration. When a force of 15 N acts on a certain object, the acceleration of the object is 5 /ms2. If the acceleration of the object becomes 9 /ms2, what is the force? Which of the following statements is CORRECT?a. Since debt capital can cause a company to go bankrupt but equity capital cannot, debt is riskier than equity, and thus the after-tax cost of debt is always greater than the cost of equity.b. The tax-adjusted cost of debt is always greater than the interest rate on debt, provided the company does in fact pay taxes.c. If a company assigns the same cost of capital to all of its projects regardless of each projects risk, then the company is likely to reject some safe projects that it actually should accept and to accept some risky projects that it should reject.d. Because no flotation costs are required to obtain capital as retained earnings, the cost of retained earnings is generally lower than the after-tax cost of debt.e. Higher flotation costs tend to reduce the cost of equity capital. There are twelve shirts in your closet, five blue and seven green. Four of the blue shirts and one of the green shirts fit well. The others are too big. You randomly select a shirt to wear. It is blue or is too big. Find the probability of this occuring A satellite with a mass of 5.6 E 5 kg is orbiting the Earth in a circular path. Determine the satellite's velocity if it is orbiting at a distance of 6.8 E 5 m above the Earth's surface. Earth's mass = 5.98 E 24 kg; Earth's radius = 6.357 E 6 m.A) 6,800 m/sB) 7,200 m/sC) 7,500 m/sD) 7,900 m/s The debt ceiling is the total amount of money that the U.S. government is authorized to ______ to meet existing commitments what was the goal of Joseph Stalins purges? If you were to ask nine-year-old Sharlise a question, with which question would Piaget predict that shed have the greatest struggle? What did you do in school today? What do you want to do for your tenth birthday party? What color do you want Mommy to dye your hair? Do you think there will ever be a female president? The triangle below is classified as which of the following What country is located on both sides of the world