Question: A 50 kg sprinter, starting from rest, runs 50 m in 7.0 s at constant acceleration. a. What is the magnitude of the horizontal force

A 50 kg sprinter, starting from rest, runs 50 m in 7.0 s at constant acceleration.
a. What is the magnitude of the horizontal force acting on the sprinter?
b. What is the sprinter’s power output at 2.0 s, 4.0 s, and 6.0 s?

Step by Step Solution

★★★★★

3.43 Rating (156 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

Model Model the sprinter as a particle and use the constantacceleration kinematic equations and t... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Physics Scientists and Engineers Questions!

A sprinter who weighs 670 N runs the first 7.0 m of a race in 1.6 s, starting from rest and accelerating uniformly. What are the sprinters? (a) Speed and (b) Kinetic energy at the end of the 1.6 s?...

1. The average velocity of a mini-bike is 15.0 km/h. How long does it take for the bike to go 35.0 m? 2. A sprinter starting from rest reaches a final velocity of 18.0 mi/h. What is her average...

Starting from rest, a 1.9 10-4-kg fl ea springs straight upward. While the fl ea is pushing off from the ground, the ground exerts an average upward force of 0.38 N on it. This force does + 2.4 ...

A 52 kg sprinter, starting from rest, runs 48 m in 7.0 s at constant acceleration. Part A What is the magnitude of the horizontal force acting on the sprinter? Express your answer with the...

Please help! 40. 40. III A 50 kg sprinter, starting from rest, runs 50 In in 7.0 s at constant acceleration. a. What is the magnitude of the horizontal force acting on the sprinter? b. What is the...

A 5 0 kg sprinter, starting from rest, runs 5 0 m in 7 . 0 s at constant acceleration. What is the magnitude of the horizontal force acting on the sprinter? What is the sprinter s power output at 2 ....

A \(50 \mathrm{~kg}\) sprinter, starting from rest, runs \(50 \mathrm{~m}\) in \(7.0 \mathrm{~s}\) at constant acceleration. a. What is the magnitude of the horizontal force acting on the sprinter?...

Suppose a 7 5 kg sprinter, starting from rest, runs the first 1 0 mm in 3 . 0 ss at constant acceleration, a reasonable model. Part A What is the magnitude of the horizontal ground force acting on...

Suppose a 7 5 kgkg sprinter, starting from rest, runs the first 1 0 mm in 3 . 0 ss at constant acceleration, a reasonable model. Part A What is the magnitude of the horizontal ground force acting on...

Suppose a 8 5 kgkg sprinter, starting from rest, runs the first 1 3 mm in 3 . 0 ss at constant acceleration, a reasonable model. What is the sprinter's power output at 1 . 0 ss , 2 . 0 ss , and 3 . 0...

Assume that the unit cell of a composite containing commingled filaments of E-glass and T-300 carbon fibers can be represented by a square array shown in the following figure. The radius of the...

There formulated balance sheet and income statement for a firm's 2009 fiscal year are given below. At the end of 2009, sales were forecasted to grow at 6 percent per year on a constant asset turnover...

4. (True/False): PROTO directives use up memory, so you must be careful not to include a PROTO directive for a procedure unless the procedure is actually called.

A machine that packages 18-ounce (510-gram) boxes of sugar-coated wheat cereal is being studied. The weights for a random sample of 100 boxes of cereal packaged by this machine are contained in the...

A 1.35-kg object is attached to a horizontal spring of force constant 2.5 N/cm. The object is started oscillating by pulling it 6.0 cm from its equilibrium position and releasing it so that it is...

In designing structures in an earthquake-prone region, how should the natural frequencies of oscillation of a structure relate to typical earthquake frequencies? Why? Should the structure have a...

For a simple pendulum, clearly distinguish between (the angular speed) and (the angular frequency). Which is constant and which is variable?

An example of a real option is: The option to make follow-on investments. The option to abandon a project. The option to wait before investing. All of the above. Question 2 Production facilities that...

Coss are allocaled to cost objectros in many ways and for many reasors . Which one of thetcilosing is a purpose of cost alocation?\ A. Evaluating revenue cantor pertormano:\ B. Measurng income and...

Please solve all 3 questions ! Consider the following two projects: The net present value (NPV) of project B is closest to: A. 22.7 B. 18.1 C. 19.9 D. 45.3 Vernon-Nelson Chemicals is planning to...