Question

Write the formula for time of descent of a body moving down along the rough inclined plane. please say fast ​

Answer 1

Answer:

Expressed mathematically, the force F required to move a block D up an inclined plane without friction is equal to its weight W times the sine of the angle the inclined plane makes with the horizontal. Referring to the Figure, F = W sin θ.

Answer 2

$\text {While \: moving \: up:  \: the \: opposing } \\ \text{ forces \: are \: gravity \: + \: friction} \\ \text {</p><p>While \: moving \: down:  }$

$\text{ it \: is \: only \: friction \: and \: also \: gravity} \\ \text{ is \: supporting \: force.} \\ \text{Friction \: is \: same \: in \: both \: the \: cases.} \\ \text{</p><p>So, \: The \: time \: of \: ascent \: for \: a } \\ \text {body \: projected \: to \: move \: up \: a \: rough \: inclined \: plane \: is \: less \: than \: the \: time \: of \: decent \: as \: it receives  \: more \: retardation.}</p><p></p><p>$