Question

A body covers 3 km in 10 min, 6 km in 30 min and 10 km in 60 min. Is the motion of the body uniform? [2 MARKS]

Answer 1

Condition for uniform motion: 1 Mark
Answer: 1 Mark

Speed1 $=\frac{3}{10}=0.3km/min$

Speed2 $=\frac{6}{30}=0.2km/min$

Speed3 $=\frac{10}{60}=0.166km/min$

When a body is in a uniform motion, it covers equal distance in equal intervals of time.
In the above question, speed in all the three cases is different. Hence, it is not a uniform motion.