Question

A trolley while going down and inched plane has an acceleration of 2cm/s. What will be velocity 3s after start

Answer 1

Initial velocity of the trolley (u) = 0 m/s (Starting from rest)

Acceleration (a) of the trolley = 2 cm/s^2 or 0.02 m/s^2

Let the final velocity of the trolley be v.

Time (t) = 3 s

Now, using the first equation of motion:

$v = u +at$

$v = 0 + 0.02 \times 3$

v = 0.06 m/s or v = 6 cm/s

Hence, the velocity of the trolley after 3 seconds is 6 cm/s

Answer 2

we know that
v =u+at
=v=0+0.o2 ×3
=0+0.06 ms to power -1
thus final velocity =6cmsto power -1