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प्रश्न
A car accelerates on a horizontal road due to the force exerted by.
विकल्प
the engine of the car
the driver of the car
the earth
the road
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उत्तर
the road
The car pushes the ground in the backward direction and according to the third law of motion, reaction force of the ground in the forward direction acts on the car.
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संबंधित प्रश्न
The below figure shows the position-time graph of a particle of mass 4 kg.
- What is the force on the particle for t < 0, t > 4 s, 0 < t < 4 s?
- What is the impulse at t = 0 and t = 4 s? (Consider one-dimensional motion only.)
Explain why a cricketer moves his hands backwards while holding a catch.
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Find the acceleration of the 500 g block in the following figure.
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We always prefer to land on sand instead of hard floor while taking a high jump.
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A cricket ball of mass 150 g has an initial velocity `u = (3hati + 4hatj)` m s−1 and a final velocity `v = - (3hati + 4hatj)` m s−1 after being hit. The change in momentum (final momentum-initial momentum) is (in kg m s1)
The position time graph of a body of mass 2 kg is as given in figure. What is the impulse on the body at t = 0 s and t = 4 s.
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