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A monkey of mass 20kg is holding a vertical rope. The rope will not break when a mass of 25kg is suspended from it but will break if the mass exceeds 25kg. What is the maximum acceleration with which the monkey can climb up along the rope (in g = 10m/s^2)
24
Aug
A monkey of mass 20kg is holding a vertical rope. The rope will not break when a mass of 25kg is suspended from it but will break if the mass exceeds 25kg. What is the maximum acceleration with which the monkey can climb up along the rope (in g = 10m/s^2) A bullet is fired [...]
The coefficient of static friction, μs, between the block A of mass 2 kg and the table as shown in the figure, is 0.2. What would be the maximum mass of the block B, so that the two blocks do not move ? The string and the pulley are assumed to be smooth and massless.
24
Aug
The coefficient of static friction, μs, between the block A of mass 2 kg and the table as shown in the figure, is 0.2. What would be the maximum mass of the block B, so that the two blocks do not move ? The string and the pulley are assumed to be smooth and massless. [...]
Two cars are moving in the same direction with the same speed with separation 40 m.In order to overtake, the driver of the second car accelerates and he overtakes the first car in 5 seconds.What is the acceleration produced by the accelerator ?
24
Aug
Two cars are moving in the same direction with the same speed with separation 40 m.In order to overtake, the driver of the second car accelerates and he overtakes the first car in 5 seconds.What is the acceleration produced by the accelerator ? the driver of the second car accelerates and he overtakes the first [...]
A particle of mass m is moving with a uniform velocity v1. It is given an impulse such that its velocity become v2. The impulse is equal to
24
Aug
A particle of mass m is moving with a uniform velocity v1. It is given an impulse such that its velocity become v2. The impulse is equal to A particle of mass m is moving with a uniform velocity v1. It is given an impulse such that its velocity become v2. The impulse is equal [...]
A ball of mass 150g moving with an acceleration 20m/s^2 is hit by force , which acts on it for 0.1sec. The impulsive force is
24
Aug
A ball of mass 150g moving with an acceleration 20m/s^2 is hit by force , which acts on it for 0.1sec. The impulsive force is A ball of mass 150g moving with an acceleration 20m/s^2 is hit by force which acts on it for 0.1sec. The impulsive force is August 24, 2020 Category: Chapter 3 [...]
Two cars are moving in the same direction with the same speed with separation 40 m.In order to overtake, the driver of the second car accelerates and he overtakes the first car in 5 seconds.What is the acceleration produced by the accelerator ?
24
Aug
Two cars are moving in the same direction with the same speed with separation 40 m.In order to overtake, the driver of the second car accelerates and he overtakes the first car in 5 seconds.What is the acceleration produced by the accelerator ? the driver of the second car accelerates and he overtakes the first [...]
A bullet is fired from a gun. The force on the bullet is given by F = 600 − 2 × 10^5 t, where, F is in N and t in sec. The force on bullet becomes zero as soon as it leaves barrel. What is average impulse imparted to bullet?
24
Aug
A bullet is fired from a gun. The force on the bullet is given by F = 600 − 2 × 10^5 t, where, F is in N and t in sec. The force on bullet becomes zero as soon as it leaves barrel. What is average impulse imparted to bullet? A bullet is fired [...]
If the same plot is of displacement (x) versus time (t), indicate whether the body is at rest or in motion and whether it has uniform velocity or variable velocity in the rigions OA, AB, BC and CD.Find the distance described in 8 s.What is the displacement of the body in 8 s
24
Aug
If the same plot is of displacement (x) versus time (t), indicate whether the body is at rest or in motion and whether it has uniform velocity or variable velocity in the rigions OA, AB, BC and CD.Find the distance described in 8 s.What is the displacement of the body in 8 s AB BC [...]
A ball of mass 3kg moving with a speed of 100 m/s, strikes a wall at an angle 60∘ (as shown in figure). The ball rebounds at the same speed and remains in contact with the wall for 0.2 s, the force exerted by the ball on the wall is
24
Aug
A ball of mass 3kg moving with a speed of 100 m/s, strikes a wall at an angle 60∘ (as shown in figure). The ball rebounds at the same speed and remains in contact with the wall for 0.2 s, the force exerted by the ball on the wall is A ball of mass 3kg [...]
A particle of mass 1 kg is thrown vertically upwards with speed 100 m/s. after 5 s, it explodes into two parts. One part of mass 400 g comes back with speed 25 m/s, What is the speed of other part just after explosion?
24
Aug
A particle of mass 1 kg is thrown vertically upwards with speed 100 m/s. after 5 s, it explodes into two parts. One part of mass 400 g comes back with speed 25 m/s, What is the speed of other part just after explosion? A particle of mass 1 kg is thrown vertically upwards with [...]