Question

find time when displacement of particle in y direction is zero if it is projected with 25m/s at angle of 53 degree with horizontal​

Answer 1

Explanation:

Displacement of particle in y direction is zero when it completes its motion and comes to ground.

It means its Time period will be its answer:-

T= 2usin@/g

= 2*25*sin53°/10

= 4 seconds

Thank you.

Answer 2

Answer:

4 second is the right answer