Tow boys raising a buket pull it at an angle ` theta` to each ogher. If each exerts a force of `20 N` and their effective pull is `30 N`, what is the angle ` theta` between their arms ?

two persons are raising a load pulling at an angle of each other. If they exert forecs of 30 N and 60 N respectively and their effective pull is at right angles to the direction of the pull of the first person, what is the angle between their pulling forces ? What is the effective pull

A spool is pulled at an angle theta with the horizontal on a rough horizontal surface as shown in the figure. If the spool remains at rest, the angle theta is equal to

A spool is pulled at an angle theta with the horizontal on a rough horizontal surface as shown in the figure. If the spool remains at rest, the angle theta is equal to

A 8000 kg engine pulls a train of 5 wagons, each of 2000 kg, along a horizontal track. If the engine exerts a force of 40000 N and the track offers a friction force of 5000 N, then calculate : the acceleration of the train.

A crate is pulled along a horizontal surface at constant velocity by an applied force F that makes an angle theta with the horizontal. The coefficient of kinetic friction between the crate and the surface is mu . Find the angle theta such that the applied force is minimum to slide the block. Also find the minimum value of this force.

A block of mass M is pulled on a smooth horizontal table by a string making an angle theta with the horizontal as shown in figure. If the acceleration of the block is a , find the force applied by the string and by the table N on the block.

A block of mass M is pulled on a smooth horizontal table by a string making an angle theta with the horizontal as shown in figure. If the acceleration of the block is a find the force applied by the string and by the table N on the block.