1
VITEEE 2022
MCQ (Single Correct Answer)
+1
-0

A particle of mass $$m$$ is moving in a horizontal circle of radius $$r$$ under a centripetal force given by $$\left(-k / r^2\right)$$, where $$k$$ is a constant. Then

A
the total energy of the particle is $$(-k / 2 r)$$
B
the kinetic energy of the particle is $$(k / r)$$
C
the potential energy of the particle is $$(k / 2 r)$$
D
the kinetic energy of the particle is $$(-k / r)$$
2
VITEEE 2021
MCQ (Single Correct Answer)
+1
-0

The power $$(P)$$ of an engine lifting a mass of $$100 \mathrm{~kg}$$ upto a height of $$10 \mathrm{~m}$$ in $$1 \mathrm{~min}$$ is

A
P = 163.3 W
B
P = 9800 W
C
P = 10000 W
D
P = 5000 W
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