Motion In A Plane

Since the ball reaches from one player to another in

2%5C%2Cs

, so the time period of the flite,

T%20%3D%202%5C%2C%20s

%5CRightarrow%20%5Cfrac%7B2u%5C%2C%20sin%5C%2C%5Ctheta%7D%7Bg%7D%3D2s

Here,

u

is the initial velocity and

%5Ctheta

is the angle of projection.

%5CRightarrow%20u%5C%2Csin%5C%2C%20%5Ctheta%3Dg%20%5Cldots%5Cleft(i%5Cright)

Now, we know that the maximum height of the projection

H%3D%5Cfrac%7Bu%5E%7B2%7D%5C%2Csin%5E%7B2%7D%5C%2C%5Ctheta%7D%7B2g%7D

H%3D%5Cfrac%7B%5Cleft(u%5C%2Csin%5C%2C%5Ctheta%5Cright)%5E%7B2%7D%7D%7B2g%7D

On putting the value of

u%5C%2C%20sin%5C%2C%5Ctheta

from E

%5Cleft(i%5Cright)

, we have

H%3D%5Cfrac%7Bg%5E%7B2%7D%7D%7B2g%7D%3D%5Cfrac%7Bg%7D%7B2%7D

H%3D%5Cfrac%7Bg%7D%7B2%7D%3D%5Cfrac%7B10%7D%7B2%7D%5C%2Cm

H%3D5%5C%2Cm

Chapter Questions
1 MCQs