A body moves from A to B in 3 sec. What is its average velocity w.r.t. the origin?

35 m/s

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10 m/s

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-35 m/s

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-10 m/s

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Solution

The correct option is D
-10 m/s

Displacement = 20 - 50

= -30 m

(-) negative sign signifies that the body is moving in the negative direction of x-axis.

$∴ A v e r a g e v e l o c i t y = \frac{- 30}{3} = - 10 m / s$ (i.e. 10 m/s towards left)

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A body moves from A to B in 3 sec. What is its average velocity w.r.t. the origin?

The correct option is D -10 m/s Displacement = 20 - 50 = -30 m (-) negative sign signifies that the body is moving in the negative direction of x-axis. ∴Averagevelocity=−303=−10m/s (i.e. 10 m/s towards left)

The correct option is D
-10 m/s

Displacement = 20 - 50

= -30 m

(-) negative sign signifies that the body is moving in the negative direction of x-axis.

$∴ A v e r a g e v e l o c i t y = \frac{- 30}{3} = - 10 m / s$ (i.e. 10 m/s towards left)