[" Two trolleys "A" and "B" are moving with accelerations a "],[" and "2a" ,respectively,"],[" in the same direction."],[" To an observer in "],[" trolley "A" ,find the magnitude of the pseudo force acting "],[" on a block of mass "m" on trolley "B" ."]

Two trolley 1 and 2 are moving with acceleration a_(1) and a_(2) respectively, in the same direction. A block of mass m on trolley 1 is in equilibrium from the frame of observer stationary with respect to trolley 2. the magnitude of friction force on block due to trolley is (assume taht no horizontal force other than friction force is acting on block).

Two trolley 1 and 2 are moving with acceleration a_(1) and a_(2) respectively, in the same direction. A block of mass m on trolley 1 is in equilibrium from the frame of observer stationary with respect to trolley 2. the magnitude of friction force on block due to trolley is (assume taht no horizontal force other than friction force is acting on block).

Two trolleys A and B are free to move on a level frictionless track, and are initially stationary. A man on trolley A throws a bag of mass 10 kg with a horizontal velocity of 4 ms^(-1) with respect to himself on to trolley B of mass 100 kg . The combined mass of trolley A (excluding bag) and the man is 140 km . Find the ratio of velocities of trolleys A and B , just after the bag lands on trolley B .

A block of mass m_1 moves with an acceleration a_(12) relative to a trolley as shown in figure. The block is being observed by two observers (2) and (3). The observer (2) is at rest with respect to trolley which is moving with acceleration a_2 while the observer(3) is moving on ground with acceleration a_3 . What is the work done by the pseudo force as observed by the observers (2) and (3) on the block during time t? Assume zero intial velocities of the bodies and observers.

A block of mass m_1 moves with an acceleration a_(12) relative to a trolley as shown in figure. The block is being observed by two observers (2) and (3). The observer (2) is at rest with respect to trolley which is moving with acceleration a_2 while the observer(3) is moving on ground with acceleration a_3 . What is the work done by the pseudo force as observed by the observers (2) and (3) on the block during time t? Assume zero intial velocities of the bodies and observers.

A boy of mass m is riding on a trolley of mass M which is moving on smooth floor at speed v_(0) . He jumps off in the opposite direction of motion of trolley with velocity u relative to the trolley before the jump. Find the velocity of the trolley after jump.

A man standing on a trolley pushes another identical a trolley (both trolleys are at rest on a rough surface), are set in motion and stop alter some time so that they If the ratio of mass of first trolley with man to mass of second trolley is 3 , then find the ratio of the stopping distances of the second trolley to that of the first trolley. (Assume coefficient of friction to be the same for both the trolleys)

A man standing on a trolley pushes another identical a trolley (both trolleys are at rest on a rough surface), are set in motion and stop alter some time so that they If the ratio of mass of first trolley with man to mass of second trolley is 3 , then find the ratio of the stopping distances of the second trolley to that of the first trolley. (Assume coefficient of friction to be the same for both the trolleys)