In the diagram below, a 10-kilogram ball is fired with a velocity of 500 meters per second from a 1,000 kilogram
cannon. What is the recoil velocity of the cannon?

A. 5 m/s
B. B) 2 m/s
C. C) 10 m/s
D. D) 500 m/s

A) 5m/s

Explanation:

Momentum of ball in one direction=momentum of cannon in other direction

mv = mv

(10)(500)=(1000)v

5000=1000v

∴v=5m/s

the answer is a. at the equator

the answer is ampere

the ampere is used to measure electricity. an ampere is a unit of electric current equal. a unit of measure for the flow of current in a circuit. one ampere is the amount of current flow provided when one volt of electrical pressure is applied against one ohm of resistance.