Question

A ball is projected horizontally from a height of hundred metre from the ground with a speed of 20 metre per second taking g is equal to 10 metre per second the time taken to reach the ground is

Answer 1

Answer:

4.47s

Step-by-step explanation:

Given:

Height=100m

Velocity=20m/s

Acceleration due to gravity =$10m/s^2$

Using the formula=

Time of flight=$\sqrt{\frac{2h}{g} }$

substituting the values...

T=$\sqrt{\frac{200}{10} }$

=$\sqrt{20}$

=4.47 (approx)