Answer:
F=ma
dv/dt= a
a is referred to as acceleration
The tension in the string and the acceleration must be equal for both masses. (See the free body diagrams)
Answer:
10miles/second
Explanation:
Change in velocity of the bird is expressed as the difference between the final velocity and initial velocity of the body.
Change in velocity = Final velocity - initial velocity
Since the bird takes off from the tree, the initial velocity of the bird = 0miles/sec
Final velocity = 10miles/secs
Change in velocity = 10-0
Change in velocity = 10miles/second
Melting, of course. Just as how an ice cube melts to water.