Chapter 2, Problem 2/084 Multistep A sprinter practicing for the 200-m dash accelerates uniformly from rest...

Question

Question

science physics

Answer 1

Answer #1

tamgemtial acceleration

at = v^2/ (2a) = (39* 5/ 18)^2 / ( 2* 66)

at = 0.8891 m/s^2

========

Comment before rate in case any doubt, will reply for sure... goodluck

Answer 2

Similar Homework Help Questions

a sprinter running a 100m dash leaves the starting block and accelerates to a maximum velocity...

a sprinter running a 100m dash leaves the starting block and accelerates to a maximum velocity of 11m/s at 6s into the race. the sprinter maintains this velocity for 2s , and then slows down until crossing the finish line 11s after beginning the race. a) what was the sprinter's average acceleration during the first 6s of the race? b) what was the sprinter's average acceleration from 6 to 8 s into the race?
Item 17 A sprinter runs a 100 m dash in 12.0 s. She starts from rest...

Item 17 A sprinter runs a 100 m dash in 12.0 s. She starts from rest with a constant acceleration ay for 2.6 s and then runs with constant speed for the remainder of the race. Part A What is the value of ar? Express your answer with the appropriate units. μΑ ? ay = Value Units Submit Request Answer
Chapter 2, Problem 2/106 The sprinter begins from rest at position A and accelerates along the...

Chapter 2, Problem 2/106 The sprinter begins from rest at position A and accelerates along the track. If the stationary tracking camera at O is rotating counterclockwise at the rate of 14.0 deg/s when the sprinter passes the 54-m mark, determine the speed v of the sprinter and the value of i 37 m 10 m Answers: m/s m/s

In a quarter-mile drag race, two cars start simultaneously from rest, and each accelerates at a...

In a quarter-mile drag race, two cars start simultaneously from rest, and each accelerates at a constant rate until it either reaches its maximum speed or crosses the finish line. Car A has an acceleration of 11.6 m/s2 and a maximum speed of 108 m/s. Car B has an acceleration of 11.7 m/s2 and a maximum speed of 91.0 m/s. Which car wins the race, and by how many seconds?
A merry-go-round starts from rest and accelerates uniformly over 19.5 s to a final angular velocity of 6.75 rev/min. (a)...

A merry-go-round starts from rest and accelerates uniformly over 19.5 s to a final angular velocity of 6.75 rev/min. (a) Find the maximum linear speed of a person sitting on the merry-go-round 6.50 m from the center. (b) Find the person's maximum radial acceleration. (c) Find the angular acceleration of the merry-go-round. (d) Find the person's tangential acceleration.
5. A motorcycle accelerates uniformly from rest and reaches a linear speed of 23.8 m/s in...

5. A motorcycle accelerates uniformly from rest and reaches a linear speed of 23.8 m/s in a time of 8.10 s. The radius of each tire is 0.270 m. What is the magnitude of the angular acceleration of each tire?

17.) A motorcycle accelerates uniformly from rest and reaches a linear speed of 21.6 m/s in...

17.) A motorcycle accelerates uniformly from rest and reaches a linear speed of 21.6 m/s in a time of 9.72 s. The radius of each tire is 0.298 m. What is the magnitude of the angular acceleration of each tire? rad/s2
QUESTION 7 1 points A sprinter needs to improve her time in the 400 m dash...

QUESTION 7 1 points A sprinter needs to improve her time in the 400 m dash event. What is her acceleration if she is cruising at 8.5s m/s and speeds up to 9.75 m/s in 1.08 s? OA 1.11 m/s OB.-1.11 m/s2 O C 0.900 m/s2 D.-0.900 m/s2 QUESTION 8 1 points A catcher catches a baseball that is traveling at 126 km/h. If the ball stops within 0.230 s, what is its acceleration? O152 m/s2 O-152 m/s2 O 0.547...
A car manufacturer says that its luxury sports model accelerates Uniformly from rest until reaching a...

A car manufacturer says that its luxury sports model accelerates Uniformly from rest until reaching a speed of 87 km / h, in 8s. to determinate The acceleration of the car. B) Calculate the distance traveled by the car in the first 8s. C) What is the speed of the car 10s after it starts its movement, assuming that it continues to accelerate at the speed of 16 m / s2, after 8 seconds?

Tipler6 2.P.077. 1 2 A bus accelerates at 1.5 m/s from rest for 11 s. It...

Tipler6 2.P.077. 1 2 A bus accelerates at 1.5 m/s from rest for 11 s. It then travels at constant speed for 23 s, after which it slows to a stop with an acceleration of magnitude 1.3 m/s2. 1) (a) What is the total distance that the bus travels? km Submit 2) (b) What was its average velocity? m/s Submit