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Physics - NLM Question with Solution | TestHub

PhysicsNLMSimple Application of NLMMedium2 minQB

PhysicsMediuminteger

A car of mass 1000 kg is travelling with a speed of 36 km/hr. The driver brakes and the momentum starts changing uniformly. It decreases by 3000 kg-m/s in 6 sec. What is the total time elapsed (in sec) after braking when the car comes to rest?

Answer:

Solution:

Initial momentum: $P_{i} = 1000 \times 10 = 10000$ kg·m/s

Uniform momentum loss rate: $\frac{3000}{6} = 500$ kg·m/s $^{2}$

Time to stop: $t = \frac{10000}{500} = 20$ s

Subject:PhysicsTopic:NLMSubtopic:Simple Application of NLM

⏱ 2mℹ️ Source: QB

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