Question

 A girl drops a coin from the Bridge which is 33 m above the water level the coin and second at the bottom of the river 25 m deep calculate the total distance

Answer 1

Answer:

Correct option is

C

4.9 m

When particle is dropped from bridge the initial velocity u is zero.

Let the height of bridge from water level is h then the displacement traveled by particle is h.

Acceleration is g downward.

Then applying equation of motion:

s=ut+

2

1

at

2

where a=g and u=0

then, h=

2

1

g(1)

2

=

2

1

×9.8=4.9m