12) A man started running form rest at a uniform acceleration of 25 m/s^2 His velocity has reached 10 m/s through a displacement of
a)20 m
b)25 m
c) 40 m
d) 0.25 m
18) When a ball is projected upwards its time of rising is the time of falling,
a) Greater than b) Smaller than
c) equal to
d) double
14) When an object falls freely under the effect of gravity, the distance moved is
a) directly proportional to time
b) inversely proportional to time
c) directly proportional to square of time
d) Inversely proportional to square of time
5)When an object moves at negative acceleration in straight line, its
a) instantaneous velocity equals its average velocity,
b) velocity increases,
c) velocity decreases,
d) displacement equal to zero.​