A bus starts moving and takes 50 s to attain the speed of 10 m/s. If the mass of the bus along with the passengers is 10000 kg; calculate the net force acting on the bus to push it to the speed of 10 m/s.
A
4000 N
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B
1000 N
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C
2000 N
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D
3000 N
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Solution
The correct option is C 2000 N From Newton’s second law of motion,
F = ma
F = m (v−u)t
F = 10000 x (10−0)50 N
F = 2000 N