Answer: 2.67 m/s
Explanation:
Given
Mass of block A is
mass of block B is
The initial velocity of block A
the initial velocity of block B is
After collision velocity of block A is
Conserving momentum
The momentum of block A after the collision is
Therefore, there is no change in sign.
Answer:
kinetic
Explanation:
i just remember it from last year
Sound travels at approximately 1,100 feet per second (766 miles per hour). Radio waves travel at the speed of light, which is approximately 186,000 miles per second. This means that in the time radio waves travel the length of a football field, light can travel further than all the way around the world.
Answer:
v =2.02
Explanation:
v^2=0.05-4.9
v^2=-4.85
square root both side
v=2.02
^^^^this is a not a perfect square