Question

a car travels 10 m in 5 seconds 20m in next 10 seconds and 30 M in last 10 seconds calculate average speed of motion

With explanation

Answer 1

$\huge{\underline{\underline{.........Answer.........}}}$

$\huge{\underline{Given:-}}$

${d_1 = 10m ; t_1 = 5 seconds}$

${d_2 = 20m ; t_1 = 10 seconds}$

${d_1 = 30m ; t_1 = 10 seconds}$

$\huge{\underline{Explanation:-}}$

By the formula of average speed

$average \: speed = \frac{total \: distance \: travelled}{total \: time \: taken}$

Substituting the values.

$average \: speed = \frac{10 + 20 + 30}{10 + 10 + 5}$

$average \: speed = \frac{60}{25}$

$average \: speed = 2.4 \: \frac{m}{s}$

$\boxed{\boxed{average speed = 2.4 m/sec}}$

So,the average speed of the particle is 2.4 m/s.

Answer 2

Answer:

$average \: speed \: = \frac{total \: distance \: travelled}{time \: taken}$

$average \: speed \: = \frac{10 + 20 + 30}{10 + 10 + 5}$

$average \: speed \: = \frac{60}{25}$

$average \: speed = 2.4 \frac{m}{s}$