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Cynthia Tallerico

Cynthia T.

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Questions asked

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A 60-kg person on a merry-go-round is traveling in a circle with a radius of 3 m at a speed of 3 m/s. What is the magnitude of the acceleration experienced by this person?

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Newton's second law can be rearranged to show that the ____ is equal to the ____.

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Greg runs across the front of the classroom with a momentum of 300 kg·m/s and jumps onto a giant skateboard. The skateboard is initially at rest and has a mass equal to Greg's. If we ignore friction with the floor, what is the total momentum of Greg and the skateboard?

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It takes about 30 s for a jet plane to go from rest to the takeoff speed of 100 mph (44.7 m/s). What is the average horizontal force that the seat exerts on the back of a 80-kg passenger during takeoff?

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Assuming that your author jumps off the roof of a garage and lands on the ground, how will the impulse the ground exerts on him if he lands on grass compare to that if he lands on concrete?

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The stunt person who is shot by a bandit and falls from the balcony into an air bag rather than onto the ground will not be hurt because the

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A 4-kg ball traveling to the right with a speed of 4 m/s collides with a 5-kg ball traveling to the left with a speed of 2 m/s. What is the total momentum of the two balls after they collide?

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A rubber ball is thrown against a horizontal wall and bounces back with the same speed it came in at. The change in momentum vector of the ball is

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A 3-kg ball traveling to the right with a speed of 4 m/s overtook and collided with a 4-kg ball traveling in the same direction with a speed of 2 m/s. The total momentum after the collision was ____ kg·m/s to the right.

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A puck is traveling along a frictionless horizontal surface at constant speed. The magnitude of the puck’s momentum is 10 kg·m/s. The puck then separates into two equal size pieces, each of which moves off at a 20 degree angle to the puck’s initial path. The magnitude of the momentum of each piece is

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