A projectile is launched with initial speed at an angle to the horizontal

PHYSICS · Subjective · CBSE · Physics · Motion in a Plane · Motion in a Plane

Problem

A projectile is launched with initial speed

v_0

at an angle

\theta_0

to the horizontal. Determine, in terms of

v_0

\theta_0

and

g

, the time

t

after launch when its velocity vector makes an angle of

45^{\circ}

above the horizontal.