What is the velocity of the football players

Reference no: EM13492976

The velocity of a 621-kg auto is changed from 10.0 m/s to 44.0 m/s in 70.2 s by an external, constant force.

(a) What is the resulting change in momentum of the car?

kg · m/s

(b) What is the magnitude of the force?

A 92-kg fullback, running at 5.0 m/s, attempts to dive directly across the goal line for a touchdown. Just as he reaches the line, he is met head-on in midair by two 73-kg linebackers both moving in the direction opposite the fullback. One is moving at 2.0 m/s, the other at 4.0 m/s.

(a) What is the velocity of the football players after the collision? (Take the positive direction to be the initial direction of the fullback.)

m/s

Reference no: EM13492976

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