First slide

Average Speed

Question

Average velocity of the particle in time t=0 to t = 5 s is

Moderate

A

$2 {ms}^{- 1}$
B

$- 2 {ms}^{- 1}$
C

$1 {ms}^{- 1}$
D

$- 1 {ms}^{- 1}$

Solution

$Average velocity = \frac{displacement}{time interval}$
$= \frac{- 5 - 5}{5} = - 2$

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