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Standard XII

Physics

COE in SHM

A toy car of ...

Question

A toy car of mass 5 kg moves up a ramp under the influence of force F plotted against displacement x. The maximum height attained is given by

$y_{m a x} = 20 m$

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$y_{m a x} = 15 m$

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$y_{m a x} = 11 m$

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$y_{m a x} = 5 m$

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Solution

The correct option is C
$y_{m a x} = 11 m$

Work done = Gain in potential energy

Area under curve = mgh

$\Rightarrow \frac{1}{2} \times 11 \times 100 = 5 \times 10 \times h$

$\Rightarrow h = 11 m$

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A toy car of mass 5 kg moves up a ramp under the influence of force F plotted against displacement x. The maximum height attained is given by

The correct option is C ymax=11m Work done = Gain in potential energy Area under curve = mgh ⇒12×11×100=5×10×h ⇒h=11m

The correct option is C
$y_{m a x} = 11 m$

Work done = Gain in potential energy

Area under curve = mgh

$\Rightarrow \frac{1}{2} \times 11 \times 100 = 5 \times 10 \times h$

$\Rightarrow h = 11 m$