Question

Blocks A and B have masses of 40 kg and 60 kg, respectively. They are placed on a smooth surface and the spring connected between them is stretched 2 m. If they are released when they are moving with the speed of 3 m/s, determine the speeds of block A the instant the spring becomes unstretched.

Answer 1

Explanation:

Here,

mass 1: 40kg

mass 2: 60kg

total mass 40+60= 100kg

distance = 2 m

velocity = 3m/s