Physics Practice Test – Projectiles (Questions with Answers and Explanations)

A body of mass 20 g projected vertically upwards in vacuum returns to the point of projection after 1.2 s. Determine the potential energy of the body at maximum height of its motion.[g = 10 ms^-2]

A. 0.36 J       B. 0.72 J      C. 360.00 J      D. 720.00 J

A stone is projected vertically upward with a speed of 30 ms^-1 from the top of a tower of height 50 m. Neglecting air resistance, determine the maximum height it reached from the ground. [g = 10 ms^-2] (WASSCE 2010)

A. 80 m      B. 45 m     C. 30 m     D. 95 m

A tennis ball projected at an angle  attains a range R = 78 m. If the velocity imparted to the ball by the racket is 30 ms^-1, calculate . [g = 10 ms^-2] (WASSCE 2014)

A. 60^o     B. 45^o     C. 30^o     D. 20^o

A missile is projected so as to attain its maximum range. Calculate the maximum height attained if the initial velocity of projectile is 200 ms^-1 [g = 10 ms^-2] (WASSCE 2018)

A. 10 m     B. 100 m     C. 1000 m    D. 10,000 m

A ball X is projected from the platform RS with a horizontal velocity of 14 ms-1. If it takes 0.5s for the ball to fall freely from R to P, (see the diagram), the distance PQ is _____