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An army vehicle of mass 1000 kg is movin...

An army vehicle of mass 1000 kg is moving with a velocity of `10 m//s` and is acted upon by a forward force of 1000 N due to the engine and a retarding force of 500 N due to friction. What will be its velocity after 10 s

A

5 m/s

B

10 m/s

C

15 m.s

D

20 m/s

Text Solution

Verified by Experts

The correct Answer is:
C
`a = (1000 - 500)/(1000) = (1)/(2) =0.5 m//s^(2)`
` u = 10m//s, t = 1 sec `
`v = u + at = 10 + 0.5 xx 10`
`v = 15m//s`
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