WBJEE · Physics · Work Power Energy
The velocity-time graph for a body of mass 10 kg is shown in the figure. Work done on the body in the first two seconds of motion is
- A -9300 J
- B 12000 J
- C -4500 J
- D -1200 J
Answer & Solution
Correct Answer
(C) -4500 J
Step-by-step Solution
Detailed explanation
\(\begin{aligned} & V=-\frac{50}{10} t+50 \\ & V=50-5 t \\ & \text { at } t=2 \mathrm{~s} \\ & V=50-10=40 \mathrm{~m} / \mathrm{s}\end{aligned}\)…
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