Projectile Motion — Previous-Year Questions

Q1. A projectile is launched at 60° to the horizontal with kinetic energy K. The kinetic energy at the highest point is:

Q2. Two projectiles are thrown with the same speed at angles 45° + α and 45° − α. The ratio of their maximum heights is:

Q3. A ball is projected from the ground at 45° with speed 20 m/s. The radius of curvature at the highest point is (g = 10 m/s²):

Q4. A projectile has the same range R for two angles. If T₁ and T₂ are the times of flight, then R is proportional to:

Q5. A particle is projected at angle θ. If velocity at the highest point is half the velocity of projection, then θ is:

Q6. A projectile reaches max height H. Speed at height H/2 is (launch angle = 60°, initial speed = u):