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A 94.0 kg person is riding in a car moving at 21.0 m/s when the car...
A 76.0 kg person is riding in a car moving at 17.0 m/s when the car...
A 76.0 kg person is riding in a car moving at 17.0 m/s when the car runs into a bridge abutment. (Assume the initial velocity is in the positive direction.) (a) Calculate the average force (in N) on the person if he is stopped by a padded dashboard that compresses an average of 1.00 cm. (Indicate the direction with the sign of your answer.) (b) Calculate the average force (in N) on the person if he is stopped by an...
A 62.5-kg person is riding in a car moving at 17.5 m/s (assume this is the...
A 62.5-kg person is riding in a car moving at 17.5 m/s (assume this is the positive direction) when the car runs into a bridge abutment. This problem will illustrate why the invention of the airbag dramatically improved the safety of automobiles. Calculate the horizontal component of the average force, in newtons, on the person if he is stopped by an air bag that compresses an average of 15 cm
(11%) Problem 4: A 82.5-kg person is riding in a car moving at 20.5 m/s (assume...
(11%) Problem 4: A 82.5-kg person is riding in a car moving at 20.5 m/s (assume this is the positive direction) when the car runs into a bridge abutment. This problem will illustrate why the invention of the airbag dramatically improved the safety of automobiles. 50% Part (a) Calculate the horizontal component of the average force, in newtons, on the person if he is stopped by a padded dashboard that compresses an average of 1.25 cm. Grade Summary Fdash Deductions...
A 75.0 kg 0erson is riding in a car moving at 20.0 m/s when the car...
A 75.0 kg 0erson is riding in a car moving at 20.0 m/s when the car runs into a pillar. The person hits the car's airbag, which compresses over 0.015 s. The person comes to rest. A) what is the magnitude of the momentum of the person riding in the car before the collision? B) What is the average force (magnitude and directions) on the person in the car from the airbag during the collision? Assume that the car was...
A car of mass 772 kg is traveling 24.4 m/s when the driver applies the brakes,...
A car of mass 772 kg is traveling 24.4 m/s when the driver applies the brakes, which lock the wheels. The car skids for 5.27 s in the positive x-direction before coming to rest. a). What is the car's acceleration (in m/s2)? (Indicate the direction with the sign of your answer.) b). What magnitude force (in N) acted on the car during this time? c). How far (in m) did the car travel?
A 1050-kg sports car is moving westbound at 15.0 m/s on a level road when it...
A 1050-kg sports car is moving westbound at 15.0 m/s on a level road when it collides with a 6320-kg truck driving east on the same road at 10.0 m/s. The two vehicles remain locked together after the collision. (a) What is the velocity (magnitude and direction) of the two vehicles just after the collision? (b) At what speed should the truck have been moving so that it and the car are both stopped in the collision? (c) Find the...
2. A 1500 kg car is traveling at 25 m/s up a 12° incline when it...
2. A 1500 kg car is traveling at 25 m/s up a 12° incline when it runs out of gas. The values of Hand uk between the tires of the car and the road are 0.02 and 0.3 respectively. a. Draw clearly the free-body diagram and the motion diagram of the car from the moment it runs out of gas to the moment it comes to a stop. The x-axis should be up the incline. b. Calculate the net force...
A 0.230 kg billiard ball that is moving at 5.00 m/s strikes the bumper of a...
A 0.230 kg billiard ball that is moving at 5.00 m/s strikes the bumper of a pool table and bounces straight back at 4.00 m/s (80% of its original speed). The collision lasts 0.0220 s. (Assume that the ball moves in the positive direction initially.) (a) Calculate the average force (in N) exerted on the ball by the bumper. (Indicate the direction with the sign of your answer) (b) How much kinetic energy in joules is lost during the collision?...
A 0.180 kg billiard ball that is moving at 3.10 m/s strikes the bumper of a...
A 0.180 kg billiard ball that is moving at 3.10 m/s strikes the bumper of a pool table and bounces straight back at 2.48 m/s (80% of its original speed). The collision lasts 0.0220 s. (Assume that the ball moves in the positive direction initially.) (a) Calculate the average force (in N) exerted on the ball by the bumper. (Indicate the direction with the sign of your answer.) (b) How much kinetic energy in joules is lost during the collision?...
A 0.190 kg billiard ball that is moving at 2.10 m/s strikes the bumper of a...
A 0.190 kg billiard ball that is moving at 2.10 m/s strikes the bumper of a pool table and bounces straight back at 1.68 m/s (80% of its original speed). The collision lasts 0.0110 s. (Assume that the ball moves in the positive direction initially.) a) Calculate the average force (in N) exerted on the ball by the bumper. (Indicate the direction with the sign of your answer. b) How much kinetic energy in joules is lost during the collision?...
(11%) Problem 4: A 82.5-kg person is riding in a car moving at 20.5 m/s (assume this is the positive direction) when the car runs into a bridge abutment. This problem will illustrate why the invention of the airbag dramatically improved the safety of automobiles. 50% Part (a) Calculate the horizontal component of the average force, in newtons, on the person if he is stopped by a padded dashboard that compresses an average of 1.25 cm. Grade Summary Fdash Deductions...
A 1050-kg sports car is moving westbound at 15.0 m/s on a level road when it collides with a 6320-kg truck driving east on the same road at 10.0 m/s. The two vehicles remain locked together after the collision. (a) What is the velocity (magnitude and direction) of the two vehicles just after the collision? (b) At what speed should the truck have been moving so that it and the car are both stopped in the collision? (c) Find the...
2. A 1500 kg car is traveling at 25 m/s up a 12° incline when it runs out of gas. The values of Hand uk between the tires of the car and the road are 0.02 and 0.3 respectively. a. Draw clearly the free-body diagram and the motion diagram of the car from the moment it runs out of gas to the moment it comes to a stop. The x-axis should be up the incline. b. Calculate the net force...
A 0.180 kg billiard ball that is moving at 3.10 m/s strikes the bumper of a pool table and bounces straight back at 2.48 m/s (80% of its original speed). The collision lasts 0.0220 s. (Assume that the ball moves in the positive direction initially.) (a) Calculate the average force (in N) exerted on the ball by the bumper. (Indicate the direction with the sign of your answer.) (b) How much kinetic energy in joules is lost during the collision?...
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