Question

A stone is thrown horizontally from a point 100 m above the ground with a speed of 20 m/s. How much time will it take to reach the ground and the speed with which it hits the ground ?​

Answer 1

u

x

=20m/s(alway_same)

u

y

=0

a

y

=10m/s

2

=g

S

y

=100m

v

y

2

=u

y

2

+2aS

y

v

y

2

=0+2×10×100

v

y

=20

5

v

net

=

v

x

2

+v

y

2

=

400+2000

=20

6

m/s

tanθ=

v

x

v

y

=

5

θ=tan

−1

(

5

)

Explanation:

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