Q. Two bodies are projected from roof with same speed in different directions. If air resistance is not taken into account then
A) They reach at ground with same magnitude of momenta if bodies have same masses
B) They reach at ground with same kinetic energy
C) They reach at ground with same speed
D) Both (a) and (c) are correct
Explanation
(d) In the case of projectile motion, if bodies are projected with same speed, they reached at ground with same speeds. So, if bodies have same mass, then momentum of bodies or magnitude of momenta must be same
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.