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# Laws of Motion – Physics | NEET Online Mock Test

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Laws of Motion - NEET (Physics)

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Normal reaction is a type of which fundamental force.

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A particle of mass 2 kg is dropped from a height of 20m and rises to a height of 5m. Calculate the change in momentum between before and after hitting the ground

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A ball weighing 10 g hits a hard surface vertically with a speed of 5 m/s and rebounds with the same speed. The ball remains in contact with the surface for 0.01 sec. The average force exerted by the surface on the ball is

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A spring balance is attached to the ceiling of a lift. A man hangs his bag on the spring and the spring reads 49 N, when the lift is stationary. If the lift moves downward with an acceleration of 5 m/s², the reading of the spring balance will nearly be equal to

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A rocket with its fuel has a mass of 200 kg. The | exhaust velocity of fuel is 1.6 km/s. The minimum rate of consumption of fuel so that the rocket may rise from the ground is (g = 10m/s²)

1. 1.250 kg/sec
2. 2.315 kgs-1
3. 3.125 kgs-1
4. 4.251 kgs-1

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A car is moving on a circular level road with radius of curvature 300m. If the coefficient of friction is 0.3 and acceleration due to gravity is 10m/s², the maximum speed of car can be

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A machine gun fires bullets of mass 30g with a velocity of 1500 m/s. The man holding the gun can exert a maximum force of 300N on it. How many bullets can he fire per second. at most?

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Calculate the contact force of the inclined plane acting on a body of mass m kept at rest on an inclined plane at an angle of 0

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A car is moving in a circular horizontal track of a radius of 10 m with a constant speed of 10 m/s. A bob is suspended from the roof of the car by a light string. The angle made by the string with the vertical at equilibrium is (g= 10 m/s²)

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When a bicycle is pedalled, the force of friction exerted by the ground on the two wheels is such that it acts

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If two balls each of mass 0.06 kg moving in opposite directions with a speed 4 m/s collide and rebound with the same speed, then the impulse imparted to each ball by the other is

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A block of mass m is placed on a rough surface (with the coefficient of friction µ) inclined at 0 to horizontal. If the block is just in equilibrium, then

1. θ = tan-1 μ
2. θ = tan-1 (2μ)
3. θ = tan-1 (3μ)
4. θ = tan-1 (2.5μ)

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A body of mass 2 kg is kept stationary by pressing to a vertical wall with a force of 100 N. The coefficient of friction between the wall and the body is 0.3. Then the frictional force is equal to (g=10 m/s²)

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A marble block of mass 2 kg lying on a long horizontal ice slab. When given a velocity of 6 ms, it is stopped by friction in 10 seconds. Then the coefficient of friction is

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A reference frame attached to the earth

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