Consider a gravity free hall in which an experimetner of mass 50 kg is resting on a 5 kg pilow, 8 ft above the floor of the hall. He pushes the pilow down so that it starts falling at a pseed of 8 fft/s. The pillow makes a perfectly elastic collision with teh floor, rebounds and reaches the experimeter's head. Findthe time elapsed in the process.

Consider a gravity free hall in which an experimenter of mass 50 kg is resting on a 5 kg pillow, 8 ft above the floor of the hall. He pushes the pillow down so that it starts falling at a speed of 8 ft/s. The pillow makes a perfectly elastic collision with the floor, rebounds and reaches the experimenter\'s head. Find the time elapsed in the process.

A man of 50 kg mass is standing in a gravity free space at a height of 10m above the floor. He throws a stone of 0.5 kg mass downwards with a speed 2m//s . When the stone reaches the floor, the distance of the man above the floor will be

A man of 50 kg mass is standing in a gravity free space at a height of 10m above the floor. He throws a stone of 0.5 kg mass downwards with a speed 2m//s . When the stone reaches the floor, the distance of the man above the floor will be

A man of 50 kg mass is standing in a gravity free space at a height of 10m above the floor. He throws a stone of 0.5 kg mass downwards with a speed 2m//s . When the stone reaches the floor, the distance of the man above the floor will be

A man of 50 kg mass is standing in a gravity free space at a height of 10 .m above the floor.-He throws a stone of 0.5 kg.mass downwards with a speed 2 m//s . When the.stone reaches the floor,the distance of the man above the floor will be

A pan of mass m = 1.5 kg and a block of mass M = 3 kg are connected to each other by a light inextensible string, passing over a light pulley as shown in Fig. Initially, the block is resting on a horizontal floor. A ball of mass m_0 = 0.5 kg collides with the pan at a speed v_0= 20 m//s . Consider this instant of collision as t = 0 . Assume collision to be perfectly inelastic. Now, Fig. answer the following questions based on the above information. Find the time t at which the block strikes the floor for the first time

A pan of mass m = 1.5 kg and a block of mass M = 3 kg are connected to each other by a light inextensible string, passing over a light pulley as shown in Fig. Initially, the block is resting on a horizontal floor. A ball of mass m_0 = 0.5 kg collides with the pan at a speed v_0= 20 m//s . Consider this instant of collision as t = 0 . Assume collision to be perfectly inelastic. Now, Fig. answer the following questions based on the above information. Find the time t at which the block strikes the floor for the first time

A pan of mass m = 1.5 kg and a block of mass M = 3 kg are connected to each other by a light inextensible string, passing over a light pulley as shown in Fig. Initially, the block is resting on a horizontal floor. A ball of mass m_0 = 0.5 kg collides with the pan at a speed v_0= 20 m//s . Consider this instant of collision as t = 0 . Assume collision to be perfectly inelastic. Now, Fig. answer the following questions based on the above information. . Find the maximum height reached by the block alter the second jerk.

An inquistive student, determined to test the law of gravity for himself, walks to the top of a building og 145 floors, with every floor of height 4 m, having a stopwatch in his hand (the first floor is at a height of 4 m from the ground level). From there he jumps off with negligible speed and hence starts rolling freely. A rocketeer arrives at the scene 5 s later and dives off from the top of the building to save the student. The rocketeer leaves the roof with an initial downward speed v_0 . In order to catch the student at a sufficiently great height above ground so that the rocketeer and the student slow down and arrive at the ground with zero velocity. The upward acceleration that accomplishes this is provided by rocketeer's jet pack, which he turns on just as he catches the student, before the rocketeer is in free fall. To prevent any discomfort to the student, the magnitude of the acceleration of the rocketeer and the student as they move downward together should not exceed 5 g. Just as the student starts his free fall, he presses the button of the stopwatch. When he reaches at the top of 100th floor, he has observed the reading of stopwatch as 00:00:06:00. What should be the initial downward speed of the rocketeer so that he catches the student at the top of 100 the floor for safe landing ?

An inquistive student, determined to test the law of gravity for himself, walks to the top of a building og 145 floors, with every floor of height 4 m, having a stopwatch in his hand (the first floor is at a height of 4 m from the ground level). From there he jumps off with negligible speed and hence starts rolling freely. A rocketeer arrives at the scene 5 s later and dives off from the top of the building to save the student. The rocketeer leaves the roof with an initial downward speed v_0 . In order to catch the student at a sufficiently great height above ground so that the rocketeer and the student slow down and arrive at the ground with zero velocity. The upward acceleration that accomplishes this is provided by rocketeer's jet pack, which he turns on just as he catches the student, before the rocketeer is in free fall. To prevent any discomfort to the student, the magnitude of the acceleration of the rocketeer and the student as they move downward together should not exceed 5 g. Just as the student starts his free fall, he presses the button of the stopwatch. When he reaches at the top of 100th floor, he has observed the reading of stopwatch as 00:00:06:00 (hh:mm:ss:100 th part of the second). Find the value of g. (correct upt ot two decimal places).