First slide

Graphical representation-Motion in 1 d

Question

The velocity-time graph of a body is given in figure. The maximum acceleration in ms^-2 is

Moderate

A

4
B

3
C

2
D

1

Solution

Maximum acceleration will be from 30 to 40 s, because slope in this interval is maximum.
$a = \frac{v_{2} - v_{1}}{t_{2} - t_{1}} = \frac{60 - 20}{40 - 30} = 4 {ms}^{- 2}$

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