Direction, velocity and impulse of a ball.

AI Thread Summary
To find the magnitude of the impulse exerted by a 350g ball rebounding off a wall, first calculate the change in momentum. The initial momentum is 1.4 kg·m/s (mass times initial velocity), and the final momentum after rebounding is -1.05 kg·m/s (mass times final velocity in the opposite direction). The impulse is the difference in momentum, resulting in a magnitude of 2.45 kg·m/s. A diagram illustrating the initial and final velocities along with the impulse direction can aid in visualizing the problem. This approach will help complete the coursework effectively.
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Homework Statement



A ball of mass 350g is traveling with a speed of 4m/s when it hits at right angles a fixed vertical wall. The ball rebounds with a speed of 3m/s. Find the magnitude of the impulse exerted by the ball on the wall. Using a simple diagram show the direction of velocities and the impulse.

Hi all i can't seem to finish my coursework, I'm stuck into questions that, i can't solve.

can some one help me please?
 
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