olaf is standing on a sheet of ice that covers the football stadium parking lot in buffalo, new york; there is negligible friction between his feet and the ice. a friend throws olaf a ball of mass 0.400 kg that is traveling horizontally at 11.1 m/s . olaf's mass is 71.8 kgif the ball hits olaf and bounces off his chest horizontally at 7.40 m/s in the opposite direction, what is his speed vf after the collision?

Question

16-12-2022
Physics

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olaf is standing on a sheet of ice that covers the football stadium parking lot in buffalo, new york; there is negligible friction between his feet and the ice. a friend throws olaf a ball of mass 0.400 kg that is traveling horizontally at 11.1 m/s . olaf's mass is 71.8 kgif the ball hits olaf and bounces off his chest horizontally at 7.40 m/s in the opposite direction, what is his speed vf after the collision?

Answer :

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kumargaurav1012000 kumargaurav1012000 · Answer 1 · 2022-12-21T23:51:07-05:00

There is barely any friction between Olaf's feet and the ice as he stands on it in Buffalo, A collision is any situation in which two or more bodies quickly exert forces on one another.

In physics, collision, which is also known as impact, is the abrupt, powerful coming together in close proximity of two bodies, such as two pool cues, a golf club and a ball, a hammer and a nail, two railroad cars when linked, or a falling object and a floor. The unit of momentum is kg ms -1. Momentum is a vector quantity that is influenced by the object's direction. During collisions between objects, momentum is a relevant concept. The total momentum before a collision between two objects equals the total momentum after the impact.

a) In the first scenario, Olaf and the ball have the same final velocity.

mu = (M + m) v

(0.400 kg) (10.9 m/s) = (70.2 kg + 0.400 kg) v

v = 0.0618 m/s

b) In the second scenario, the ball has a final velocity of 8.10 m/s in the opposite direction.

mu = mv + MV

(0.400 kg) (10.9 m/s) = (0.400 kg) (-8.10 m/s) + (70.2 kg) v

v = 0.108 m/s

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