Question

a trolley ehile going doewn am onclined plane has an acceleration of 2cm/s square what will be its velocity 3s after the start
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Answer 1

➭ Question :-

$\longrightarrow$a trolley ehile going doewn am inclined plane has an acceleration of 2cm/s² what will be its velocity 3s after the start

➭ Given :-

$\longrightarrow$Acceleration of trolley, a = 2 cm/s² = 0.02 m/s²

$\longrightarrow$Initial speed of trolley, u = 0 (As trolley starts from rest)

$\longrightarrow$Time taken by trolley, t = 3 seconds

➭ To Find :-

$\longrightarrow$Final speed, v

➭ Formula required :-

$\longrightarrow$$\large{\bold{\boxed{\sf v = u + at }}}$

➭ Solution :-

Putting all the values, we get

$\Longrightarrow {\tt v=u+at}$

$\Longrightarrow{\tt v= 0 + 0.02 × 3}$

$\Longrightarrow{\tt v = 0.02 × 3}$

$\Longrightarrow {\boxed{\tt v = 0.06m/s}}$

Hence, the final velocity of trolley is 0.06 m/s.

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☞ More to know....

• Final velocity (v) of an object equals initial velocity (u) of that object plus acceleration (a) of the object times the elapsed time (t) from u to v.
• Use standard gravity, a = 9.80665 m/s2, for equations involving the Earth's gravitational force as the acceleration rate of an object.