Question

A boy of mass 60 kg running at 3 m/s jumps on to a trolley of mass 140 kg moving with velocity of 1.5 m/s in the same direction. With what velocity will the two moves together ?

Hoii
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Answer 1

Answer:

1.95 m/s.

Explanation:

Using conservation of momentum formula,

=> $\bold{m_{1}u_{1}+m_{2}u_{2}=m_{1}v_{1}+m_{2}v_{2}}$

Where,

=> m = mass

=> u =  initial velocity

=> v = final velocity

Substituting we get,

=> 60 × 3 + 140 × 1.5 = (60 + 140)v

∵ We are asked to find the velocity (with what velocity will the two bodies move together)

=> 390 Kgm/s = 200V

=> V = 390/200

=> V = 1.95 m/s

∴ The two bodies will move with a velocity of 1.95 m/s.

Answer 2

ya that's Gud :)

Waise Mood refresh karne ke liye memes padh rahe ho? -,-