Chapter 5 – NLM
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The force ‘F’ acting on a particle of mass ‘m’ is indicated by the force-time graph shown below. The change in momentum of the particle over the time interval from zero to 8 s is question
28
Aug
The force ‘F’ acting on a particle of mass ‘m’ is indicated by the force-time graph shown below. The change in momentum of the particle over the time interval from zero to 8 s is question The force 'F' acting on a particle of mass 'm' is indicated by the force-time graph shown below. The [...]
A bullet of mass 10g moving horizontally with a velocity of 400 m/s strikes a wood block of mass 2 kg which is suspended by a light inextensible string of length 5 m. As a result, the centre of gravity the block is found to rise a vertical distance of the block is found to rise a vertical distance of 10 cm. The speed of the bullet after it emerges out horizontally from the block will be:
28
Aug
A bullet of mass 10g moving horizontally with a velocity of 400 m/s strikes a wood block of mass 2 kg which is suspended by a light inextensible string of length 5 m. As a result, the centre of gravity the block is found to rise a vertical distance of the block is found to [...]
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A bullet of mass 10g moving horizontally with a velocity of 400 m/s strikes a wood block of mass 2 kg which is suspended by a light inextensible string of length 5 m. As a result ,
A missile is fired for maximum range with an initial velocity of 20m/s. If g = 10m/s2 ,
the range of the missile is ,
A rigid ball of mass m strikes a rigid wall at 60 degree and gets reflected without loss of speed as shown in the figure below. The value of impulse imparted by the wall on the ball will be :
28
Aug
A rigid ball of mass m strikes a rigid wall at 60 degree and gets reflected without loss of speed as shown in the figure below. The value of impulse imparted by the wall on the ball will be : A rigid ball of mass m strikes a rigid wall at 60 degree and gets [...]
A stationary particle explodes into two particles of masses m1 and m2 which move in opposite direction with velocities v1 and v2. The ratio of their kinetic energies E1/E2 is
24
Aug
A stationary particle explodes into two particles of masses m1 and m2 which move in opposite direction with velocities v1 and v2. The ratio of their kinetic energies E1/E2 is A stationary particle explodes into two particles of masses m1 and m2 which move in opposite direction with velocities v1 and v2. The ratio of [...]
A man weighs 80kg. He stands on a weighing scale in a lift which is moving upwards with a uniform acceleration of 5m/s^2. What would be the reading on the scale
24
Aug
A man weighs 80kg. He stands on a weighing scale in a lift which is moving upwards with a uniform acceleration of 5m/s^2. What would be the reading on the scale A man weighs 80kg. He stands on a weighing scale in a lift which is moving upwards with a uniform acceleration of 5m/s^2. What [...]
Starting from rest ,a body slides down a 45 degree inclined plane in twice the time it takes to slide down the same distance in the absence of friction .The coefficient of friction between the body and inclined plane is
24
Aug
Starting from rest ,a body slides down a 45 degree inclined plane in twice the time it takes to slide down the same distance in the absence of friction .The coefficient of friction between the body and inclined plane is a body slides down a 45 degree inclined plane in twice the time it takes [...]
A heavy uniform chain lies on a horizontal table top. If the coefficient of friction between the chain and the table surface is 0.25, then find the maximum friction of the length of the chain that can hang over one edge of the table.
24
Aug
A heavy uniform chain lies on a horizontal table top. If the coefficient of friction between the chain and the table surface is 0.25, then find the maximum friction of the length of the chain that can hang over one edge of the table. A heavy uniform chain lies on a horizontal table top. If [...]
Consider a car moving along a straight horizontal road with a speed of 72 km/h. If the coefficient of static friction between the tyre and the road is 0.5, the shortest distance in which the car can be stopped is?(Take g=10m/s^2)
24
Aug
Consider a car moving along a straight horizontal road with a speed of 72 km/h. If the coefficient of static friction between the tyre and the road is 0.5, the shortest distance in which the car can be stopped is?(Take g=10m/s^2) Consider a car moving along a straight horizontal road with a speed of 72 [...]
A block has been placed on an inclined plane with the slope angle θ, block slides down the plane at constant speed. The coefficient of kinetic friction is equal to:
24
Aug
A block has been placed on an inclined plane with the slope angle θ, block slides down the plane at constant speed. The coefficient of kinetic friction is equal to: A block has been placed on an inclined plane with the slope angle θ block slides down the plane at constant speed. The coefficient of [...]
The maximum speed of a car on a road turn of radius 30m, if the coefficient of friction between the tyres and the road is 0.4 ? g==9.8 m/s^2
24
Aug
The maximum speed of a car on a road turn of radius 30m, if the coefficient of friction between the tyres and the road is 0.4 ? g==9.8 m/s^2 if the coefficient of friction between the tyres and the road is 0.4 ? g==9.8 m/s^2 The maximum speed of a car on a road turn [...]