Who whants to be freinds

Aball with a mass of 275 g is dropped from rest, hits the floor and rebounds upward. if the ball hits the floor with a speed of 2.40 m/s and rebounds with a speed of 1.70 m/s, determine the following. (a) magnitude of the change in the ball's momentum (let up be in the positive direction.)

What is the power rating of the lightbulb if 3.0 a flow through it when connected to a 15 v battery

Which of the following are appropriate acceleration units?