Question

In projectile motion kinetic energy is maximum at
a)maximum height
b)at the point of projection
c)at the point of reaching ground
d)both b and c

Answer 1

Answer:

ANSWER

Mg(

2g

u

2

sin

2

θ

)=

2

1

Mu

2

cos

2

θ

tan

2

θ=1

θ=45

∘

T=

g

2usinθ

T=

10

2

2×20

=2

2

seconds