Question

18
13. A particle is projected with speed u at angle
horizontal from ground, If it is at same height
ground at time, and 12, then its average velo
in time interval 4 to l, is
(1) Zero
(2) u sin

(3) u cos 0​

Answer 1

Answer:

average velocity is u cos theta

Explanation:

at time 4 and 12 sec ..... the particle will hv same downward velocity.... but for the whole journey the horizontal velocity of the projectile remains constant .....so the average velocity of the journey from time 4 to 12 sec id u cos theta