Question

Find the time taken by a body projected up a smooth inclined plane with an initial
velocity u to travel through a distance l.​

Answer 1

Answer:

A angle of projection from B is 45

o

.

As the body is able to cross the well of diameter 40m,hence.

R=

g

v

2

or v=

gR

=

10×40

=20ms

−1

on the inclined plane , the retardation is gsinα=gsin45

o

=10/

2

ms

−2

Using v

2

−u

2

=2ax(20)

2

−u

2

=2×(

2

10

)×20

2

u=20

2

ms

−1