A block of mass `2.5 kg` is pushed `2.20`m along a frictionless horizontal table by a constant force 16 N directed `45^@` above the horizontal. Determine the work done by.
(a) the applied force,
(b) the mormal force exerted by the table,
(c) the force of gravity and
(d) determine the total work done on the block.
(a) the applied force,
(b) the mormal force exerted by the table,
(c) the force of gravity and
(d) determine the total work done on the block.
(a) `W_(F) =FS cos 45^@`
`=(16)(2.2)((1)/(sqrt(2)))=24.9J`
(b) `W=_(N) =N S cos90^@=0`
(c) `W_(mg) =(mg)(S) cos 90^@=0`
(d) Only three forces are acting. So, total work done is summation fo all above work done.