In the figure show , a person wants raise a block lying on the ground to a height `h` . In which case he has to exert more force. Assume pulleys and strings are light .

In the figure show , a person wants to raise a block lying on the ground to a height h . In which case he has to exert more force. Assume pulleys and strings are light .

In the figure shown , a person wants to raise a block lying on the ground to a height h . In which case he has to exert more force. Assume pulleys and strings are light .

In the figure shown, a person wants to raise a block lying on the ground to a height h. in both the cases if time required is same then in which case he has to exert more force. Assume pulleys and strings light.

In the figure shown, a person wants to raise a block lying on the ground to a height h. in both the cases if time required is same then in which case he has to exert more force. Assume pulleys and strings light.

In fig., a person wants to rise a block lying on the ground to a height h. In both the cases, if the time required is same, then in which case he has to exert more force? Assuem pulleys and strigns light.

In fig., a person wants to rise a block lying on the ground to a height h. In both the cases, if the time required is same, then in which case he has to exert more force? Assuem pulleys and strigns light.

The block has to be raised to a height L in the same time t. In which case force required is more ?

Under the condition shown in figure. Find out the minimum value of horizontal force F_(2) on pulley, which can be applied without causing any motion (assume pulley & strings are light)

There blocks a,b and c of massses 10 kg ,10 kg and 20 kg respectivaly are arrenged as shown in figure all the surface are frictionless and string is inextensible A constant force F= 20N MN is applied on block a as shown .pulley and string are light . part of block a as shown . pulley and string are light . part of the string connecting both pulleys is vertical and part of hte stings connecting pulleys with masses a and b are horizontal .