Question

A particle moves 10m due east in 2s and 15 m due north in 4s.Find the average speed and velocity of the particle.

Answer 1

Explanation:

V¹=15m/s,t¹=2sV²=5m/s,t¹=8s speed for the particle 2s in 15m/s distance =speed ×time=d=30 m ,the speed of the particle in next 8s is 5 m/s distance =speed ×time =d=40m average speed =40+30/8+2=7m/s