A block, while going down an inclined plane, has an acceleration of 2 $c m / s^{2}$ . What will be its velocity 4 s after the start ?

4 cm/s

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6 cm/s

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8 cm/s

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11 cm/s

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Solution

The correct option is C
8 cm/s

Here,

u = 0 , a = 2 $c m / s^{2}$ , t = 4 s

Using,

v = u + at

= 0 + (2 x 4)

v = 8 cm/s

Hence the velocity after 4s will be 8 cm/s.

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A block, while going down an inclined plane, has an acceleration of 2 cm/s2 . What will be its velocity 4 s after the start ?

The correct option is C 8 cm/s Here, u = 0 , a = 2 cm/s2, t = 4 s Using, v = u + at = 0 + (2 x 4) v = 8 cm/s Hence the velocity after 4s will be 8 cm/s.

A block, while going down an inclined plane, has an acceleration of 2 $c m / s^{2}$ . What will be its velocity 4 s after the start ?

The correct option is C
8 cm/s

Here,

u = 0 , a = 2 $c m / s^{2}$ , t = 4 s

Using,

v = u + at

= 0 + (2 x 4)

v = 8 cm/s

Hence the velocity after 4s will be 8 cm/s.