Question

A trolley while going down an inclined plane has an acceleration of 2 centimetre per second square what will be its velocity 3 seconds after the start

Answer 1

Hi.

As per as question, it can be said that the initial velocity of the trolley is zero.
      Initial velocity (u) = 0
      Final velocity (v) = v cm/s     
        Acceleration (a) = a cm/s^-2
                     Time (t) = 3 s

Using the formula,
                   a = (v - u)/t
                   2 =  (v - o)/3
                    2 * 3 = v - 0
                     v = 6 cm/s

Thus, velocity of a trolley in an inclined plane is 6 cm/s.

Hope it will help u.

Have a nice day.

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Answer 2

┏─━─━─━─━∞◆∞━─━─━─━─┓ ✭✮ӇЄƦЄ ƖƧ ƳƠƲƦ ƛƝƧƜЄƦ✮✭ ┗─━─━─━─━∞◆∞━─━─━─━─┛

➧ a ➾ 2 cm/s²
➧ u ➾ 0
➧ t ➾ 3 sec
➧ v ➾ ?

❱ So, v = u + at

v = 0 + (2 cm/s²) × (3 s)
v = 0 + 6 cm/s
v = 6 cm/s ...✔

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