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A vehicle traveling along a street slipped on an icy surface and struck a guardrail. The time interval of impact was 0.955 s, during which the guardrail exerted a force of 505 N. What is the variation in the momentum of the vehicle?
A 75.0 kg hockey player moving at a speed of + 10.0 m / s collides with a second hockey player, who is motionless. After the collision, the two skaters move together at a speed of + 4.50 m / s. During the collision, what is the impulse received by the 75.0 kg player?
A force of 8.0 N is applied for 1.5 s to a model train, having a mass of 1.2 kg, at rest on a horizontal surface. What is the speed of the model train after the 1.5 s time interval?
A 500 g rubber ball is thrown to the right at a wall at a speed of 5.00 m / s. The ball bounces to the left at a speed of 4.50 m / s. If the collision between the ball and the wall lasted 0.250 s, what is the force exerted by the wall on the ball?
In the event of a collision between vehicles, the severity of injuries sustained by drivers can be reduced with an air bag. In a car initially traveling at +100 km / h, an air bag immobilizes a driver with a mass of 62 kg in 0.090 s. The magnitude of the average force exerted by the air bag on the driver is?
A hockey puck with a mass of 0.170 kg glides on an ice rink with a momentum of 1.60 kg m / s. What is the speed in m / s of the puck?
A hockey puck has a mass of 0.170 kg, a soccer ball has a mass of 0.425 kg, a baseball has a mass of 0.145 kg, and a ping-pong ball has a mass of 0.00270 kg. In order for these objects to have the same amount of movement, which one must have the greatest speed?
What is the momentum of a 145 g baseball moving at a speed of 26.5 m / s?
Calculate the mass of the earth if the radius is approximately 6400km, if g=9.8m/s² and G=6.7×10–11Nm²kg–²
What happens to the magnitude of a the gravitational field strength if the distance from a planet doubles and the test mass quadruples?
