Question

A body moves with a velocity of 10 m/s for 10 s and then with a velocity of 20 m/s in the same direction for 40s.Find its average velocity​

Answer 1

Refer the attachment for your answer mate.

Answer 2

Required Answer:-

Distance travelled in 10s = 10m/s × 10s = 100m

Distance travelled in 40s = 20m/s × 40s = 800m

$\quad$

• Average Velocity = $\frac{Total\ Distance}{Total\ Time}$

• Average Velocity =$\frac{D+D'}{t+t'}$

• Average Velocity = $\frac{800+100}{40+10}$

• Average Velocity = $\frac{900}{50}$

• Average Velocity = 18m/s