a speed of 12.0 m/s. The contact time is 0.100 seconds. before after 16.0 m/s 12.0 m/s (a) Determine the momentum of the basketball before it hits the wall. momentum of the basketball = (b) Determine the momentum of the basketball after it hits the wall. momentum of the basketball = (c) (i) Calculate the impulse with the wall, impulse with the wall = (ii) hence obtain the force of the wall on the ball. force of the wall on the ball =
a speed of 12.0 m/s. The contact time is 0.100 seconds. before after 16.0 m/s 12.0 m/s (a) Determine the momentum of the basketball before it hits the wall. momentum of the basketball = (b) Determine the momentum of the basketball after it hits the wall. momentum of the basketball = (c) (i) Calculate the impulse with the wall, impulse with the wall = (ii) hence obtain the force of the wall on the ball. force of the wall on the ball =
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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![a speed of 12.0 m/s. The contact time is 0.100 seconds.
after
before
12.0 m/s
16.0 m/s
(a)
Determine the momentum of the basketball before it hits the wall.
momentum of the basketball =
(b)
Determine the momentum of the basketball after it hits the wall.
momentum of the basketball =
(c) (i)
Calculate the impulse with the wall,
impulse with the wall =
(ii) hence obtain the force of the wall on the ball.
force of the wall on the ball =
PHY310@HCIS
Momentum
Page 4 of 6](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb58474c4-52a5-4c83-89a9-a419f038194c%2F9023b215-e77c-4043-a420-c7072bf40c80%2F67rjhei_processed.jpeg&w=3840&q=75)
Transcribed Image Text:a speed of 12.0 m/s. The contact time is 0.100 seconds.
after
before
12.0 m/s
16.0 m/s
(a)
Determine the momentum of the basketball before it hits the wall.
momentum of the basketball =
(b)
Determine the momentum of the basketball after it hits the wall.
momentum of the basketball =
(c) (i)
Calculate the impulse with the wall,
impulse with the wall =
(ii) hence obtain the force of the wall on the ball.
force of the wall on the ball =
PHY310@HCIS
Momentum
Page 4 of 6
![Figure below shows
a new car.
dummy of mass 70 kg used in a crash test to investigate the safety of
passenger
compartment
barrier
dummy
windscreen
The car approaches a solid barrier at 20 m/s. It crashes into the barrier and stops suddenly.
(a)
(i)
Calculate the momentum of the dummy immediately before the crash.
momentum =
[2]
(ii)
Determine the impulse that must be applied to the dummy to bring it to rest.
impulse =
[1]
(Ь)
In the crash test, the passenger compartment comes to rest in 0.20 s.
Calculate the deceleration of the passenger compartment.
deceleration =
[2]
The seat belt and air bag bring the dummy to rest so that it does not hit the windscreen.
The dummy has an average deceleration of 80m/s?.
(c)
Calculate the average resultant force applied to the dummy, of mass 70 kg.
force =
[2]
PHY310@HCIS
Momentum
Page 5 of 6](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb58474c4-52a5-4c83-89a9-a419f038194c%2F9023b215-e77c-4043-a420-c7072bf40c80%2F4bah665_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Figure below shows
a new car.
dummy of mass 70 kg used in a crash test to investigate the safety of
passenger
compartment
barrier
dummy
windscreen
The car approaches a solid barrier at 20 m/s. It crashes into the barrier and stops suddenly.
(a)
(i)
Calculate the momentum of the dummy immediately before the crash.
momentum =
[2]
(ii)
Determine the impulse that must be applied to the dummy to bring it to rest.
impulse =
[1]
(Ь)
In the crash test, the passenger compartment comes to rest in 0.20 s.
Calculate the deceleration of the passenger compartment.
deceleration =
[2]
The seat belt and air bag bring the dummy to rest so that it does not hit the windscreen.
The dummy has an average deceleration of 80m/s?.
(c)
Calculate the average resultant force applied to the dummy, of mass 70 kg.
force =
[2]
PHY310@HCIS
Momentum
Page 5 of 6
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