Question

Two bodies of 5 kg and 3 kg moving with velocities 3 m/s and 10 m/s in a straight line with 3 kg behind 5 kg collide. After the collision, 3 kg has a velocity of 5 m/s. The velocity of 5 kg
mass is​

Answer 1

Answer:

5.5+3.3=5v+3v

′

3

4

=5v+3v

′

5−3

v

′

−v

=1=v

′

−v=2

=v

′

=v+2

evaluating both

u=

2

7

m/s

v

′

=

2

11

m/s

Answer 2

Explanation:

the rainbow has goneA 418.6 N boy eats a protein bar with an energy content of 100 calories. What percent of this energy will be used up if he climbs 100-meter stairs