3 years ago

A 2kg object is moving with speed 5ms. then hits a

Physics

1 answer:

densk [106]3 years ago

6 0

Given :

A 2kg object is moving with speed 5m/s. then hits a wall in 0.5s before reversing its direction with a speed of 2m/s.

To Find :

The impulse.

Solution :

Impulse can be calculated by change in momentum :

$I = mv_f - mv_i\\\\I = 2\times( -2 + 5 )\ kg \ m/s\\\\I = 6 \ kg \ m/s$

Therefore, the impulse is 6 kg m/s.

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