Question

A particle starts from rest. Its acceleration $\left(a\right)$ versus time $\left(t\right)$ is as shown in Fig. The maximum speed of the particle will be:

• A. $110m{s}^{-1}$
• B. $55m{s}^{-1}$
• C. $550m{s}^{-1}$
• D. $660m{s}^{-1}$

Answer 1

The correct option is B $55m{s}^{-1}$

Given;

$u_i=0m/s$

Hence

Max speed$=$ Area under the graph

$V_{max}=\frac{1}{2}\times 10\times 11=55m/s$