busulesDizzy is speeding along at 35.9 m/s as she approaches the level section of track near theloading dock of the Whizzer roller coaster ride.A braking system abruptly brings the 312-kg car (rider mass included) to a speed of 2.87m/s over a distance of 5.96 meters. Determine the magnitude of the braking force (innewtons) applied to Dizzy's car.

Answered: Image /qna-images/answer/1979a677-1adc-4b62-aaf5-87c4d3e0ae2e.jpg

Answered: Dizzy is speeding along at 35.9 m/s as…

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter9: Linear Momentum And Collisions

Section: Chapter Questions

Problem 42P: A 2000-kg railway freight car coasts at 4.4 m/s underneath a grain terminal, which dumps grain...

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Similar questions

A 2000-kg railway freight car coasts at 4.4 m/s underneath a grain terminal, which dumps grain directly down into the freight car. If the speed of the loaded freight car must not go below 3.0 m/s, what is the maximum mass of grain that it can accept?
Two figure skaters are coasting in the same direction, with the leading skater moving at 5.5 m/s and the trailing skating moving at 6.2 m/s. When the trailing skater catches up with the leading skater, he picks her up without applying any horizontal forces on his skates. If the trailing skater is 50 heavier than the 50-kg leading skater, what is their speed after he picks her up?
A model rocket engine has an average thrust of 5.26 N. It has an initial mass of 25.5 g, which includes fuel mass of 12.7 g. The duration of its burn is 1.90 s. (a) What is the average exhaust speed of the engine? (b) This engine is placed in a rocket body of mass 53.5 g. What is the final velocity of the rocket if it were to be fired from rest in outer space by an astronaut on a spacewalk? Assume the fuel burns at a constant rate.
A 0.663-kg ball, initially moving with a speed of 3.09 m/s, bounces off a wall and then moves with a speed magnitude half of its original directed in the opposite direction. If the ball is in contact with the wall for 5.4 ms, what is the magnitude of the average force that the wall exerts on the ball? Express your answer in two decimal places, in Newtons.
A 0.507-kg ball, initially moving with a speed of 3.49 m/s, bounces off a wall and then moves with a speed magnitude half of its original directed in the opposite direction. If the ball is in contact with the wall for 6.7 ms, what is the magnitude of the average force that the wall exerts on the ball? Express ans in 2decimal places, in Newtons.
A 0.24 kg blob of clay is thrown at a wall with an initial velocity of 23 m/s. If the comes to a stop in 91 ms, what is the average force experiences by the clay?
A 0.065-kg tennis ball moving to the right with a speed of 15 m/s is struck by a tennis racket, causing it to move to the left with a speed of 15 m/s. If the ball remains in contact with the racquet for 0.020 s, what is the magnitude of the average force experienced by the ball?
As part of a safety investigation, two 1400 kg cars traveling at 20 m/s are crashed into different barriers. Find the average forces exerted on (a) the car that hits a line of water barrels and takes 1.5 s to stop, and (b) the car that hits a concrete barrier and takes 0.10 s to stop.
In a crash test, a car with a mass of 1200 kg hits the wall as shown. the car's initial and final speeds are 20 i m / s and 3.2 i m / s, respectively. What is the average force applied to the car if the collision lasts for 0.2 s?
A 0.19kg baseball is pitched at 42m/s is struck by the bat with an average force of 700 N, which results in a velocity of 28m/s in the opposite direction from the original velocity. How long were the bat and ball in contact?
A diver with a mass of 80 kg jumps from a dock into a 130 kg boat at rest on the west side of the dock. If the velocity of the diver is 4.1 m/s to the west, what is the final velocity of the diver in the boat?
Hello, can you please help me with this physics question? A ball with a mass of 0.17 kg is bounced off a tenis court. Before hiting the ground, the ball is moving at a velocity of (1.4, -8.5)m/s. If the ground exerts a force of 203 N acting upward for a time of 0.0125s, what is the final velocity of the ball leaving the ground of the tenis court? (the y value is positive in the upward direction)

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