Chapter 5 – Laws of Motion
A car of mass m starts from rest and acquires a velocity along east υ = υiˆ(υ > 0) in two seconds Assuming the car moves with uniform acceleration the force exerted on the car is .
11
Sep
A car of mass m starts from rest and acquires a velocity along east υ = υiˆ(υ > 0) in two seconds Assuming the car moves with uniform acceleration the force exerted on the car is . A car of mass m starts from rest and acquires a velocity along east υ = υiˆ(υ > [...]
A body with mass 5 kg is acted upon by a force F = ( -3 i^ + 4 j^)N. If its initial velocity at t=0 is v = ( 6 i^ – 12 j^)ms^−1, the time at which it will just have a velocity along the y-axis is
11
Sep
A body with mass 5 kg is acted upon by a force F = ( -3 i^ + 4 j^)N. If its initial velocity at t=0 is v = ( 6 i^ – 12 j^)ms^−1, the time at which it will just have a velocity along the y-axis is A body with mass 5 kg [...]
A body of mass 2 kg travels according to the law x(t) = pt + qt^2 + rt^3 where p = 3 ms^−1, q = 4 ms^−2 and r = 5 ms^−3. The acting on the body at t = 2 seconds is
11
Sep
A body of mass 2 kg travels according to the law x(t) = pt + qt^2 + rt^3 where p = 3 ms^−1, q = 4 ms^−2 and r = 5 ms^−3. The acting on the body at t = 2 seconds is A body of mass 2 kg travels according to the law x(t) [...]
A trolley T of mass 5 kg on a smooth horizontal surface is pulled by a load of 2 kg through a uniform rope ABC of length 2 m and mass 1 kg, (figure); As the load falls from BC = 0 m to BC = 2 m, its acceleration, in ms^-2 changes from (Take g = 10 ms^-2)
11
Sep
A trolley T of mass 5 kg on a smooth horizontal surface is pulled by a load of 2 kg through a uniform rope ABC of length 2 m and mass 1 kg, (figure); As the load falls from BC = 0 m to BC = 2 m, its acceleration, in ms^-2 changes from (Take [...]
The elevator shown in figure is descending, with an acceleration of 2 m/s^2. The mass of the block A is 0.5 kg. The force exerted by the block A on the block B is –
11
Sep
The elevator shown in figure is descending, with an acceleration of 2 m/s^2. The mass of the block A is 0.5 kg. The force exerted by the block A on the block B is – The elevator shown in figure is descending with an acceleration of 2 m/s^2. The mass of the block A is [...]
Two pulley arrangements (A) and (B) are as shown in the figure. Neglect the masses of the ropes and pulleys and the friction at the axle of the pulleys. The ratio of the acceleration of mass m in arrangement (A) to that in arrangement (B) is
11
Sep
Two pulley arrangements (A) and (B) are as shown in the figure. Neglect the masses of the ropes and pulleys and the friction at the axle of the pulleys. The ratio of the acceleration of mass m in arrangement (A) to that in arrangement (B) is Two masses m1 and m2 are accelerated uniformly on [...]
Two bodies of mass 4 kg and 6 kg are attached to the ends of a string passing over a pulley . The 4 kg mass is attached to the table top by another string.The tension in this string T1 is equal to
11
Sep
Two bodies of mass 4 kg and 6 kg are attached to the ends of a string passing over a pulley . The 4 kg mass is attached to the table top by another string.The tension in this string T1 is equal to Two bodies of mass 4 kg and 6 kg are attached to [...]
Two masses of 10 kg and 20 kg respectively are tied together by a massless spring. A force of 200 N is applied on 20 kg mass as shown in figure. At the instant shown, the acceleration of 10 kg mass is 12m/s^2, the the acceleration of 20 kg mass.
11
Sep
Two masses of 10 kg and 20 kg respectively are tied together by a massless spring. A force of 200 N is applied on 20 kg mass as shown in figure. At the instant shown, the acceleration of 10 kg mass is 12m/s^2, the the acceleration of 20 kg mass. the acceleration of 10 kg [...]
A boy of mass 40 kg stands in a frame of mass 360 kg. He pulls on a light rope which passes over a pulley. The other end of the rope is firmly attached to the frame. What force should be exerted by the boy on the rope for the system to be in equilibrium?
11
Sep
A boy of mass 40 kg stands in a frame of mass 360 kg. He pulls on a light rope which passes over a pulley. The other end of the rope is firmly attached to the frame. What force should be exerted by the boy on the rope for the system to be in equilibrium? [...]
Three masses of 1 kg, 6 kg and 3 kg are connected to each other with strings and are placed on a table as shown in figure. What is the acceleration with which the system is moving? ( Take g = ms^-2)
11
Sep
Three masses of 1 kg, 6 kg and 3 kg are connected to each other with strings and are placed on a table as shown in figure. What is the acceleration with which the system is moving? ( Take g = ms^-2) 6 kg and 3 kg are connected to each other with strings and [...]