Power MCQ - Practice Questions & Answers

A body of mass m accelerates uniformly from rest to V in time T The instantaneous power delivered to the body as a function of time is given by :

A

$m\frac{v^2}{2T^2}t$

B

$m\frac{v^{2}}{T^2}t^2$

C

$m\frac{v^{2}}{T^{2}}t$

D

$m\frac{v^{2}}{2T}t^2$

View Solution

A body of mass m accelerates uniformly from rest to $v_{1}$ in time $t_{1}$ The instantaneous power delivered to the body as a function of time t is :

A

$m\frac{v_{1}}{t_{1}} t$

B

$m\frac{v_{1}^{2}}{t_{1}^{2}} t$

C

$P=m\frac{v_{1}}{t_{1}} t^2$

D

$m\frac{v_{1}^{2}}{t_{1}} t$

View Solution

A body is moved along a straight line by a machine delivering constant power. The distance moved by the body in time t is proportional to:

A

$T^{3/4}$

B

$T^{3/2}$

C

$T^{1/4}$

D

$T^{1/2}$

View Solution

Initially block of mass 2 kg was at rest. If variable force $F=(2 t-4) N$ acts on a block. Then find the average power delivered to the block for time interval $t=0 \mathrm{~s}$ to $\mathrm{t}=1 \mathrm{sec}$.

A

5.25 Watt

B

5.5 Watt

C

6.5 Watt

D

6.45 Watt

View Solution

A weight lifter lifts 300 kg from the ground to a height of 4m in 3 seconds. The average power generated by him is

A

5880 W

B

3920 W

C

1960 W

D

4410 W

View Solution

A body is moved along a straight line by a machine delivering constant power. The distance moved by the body in time t is proportional to

A

$t^{\frac{1}{2}}$

B

$t^{\frac{3}{4}}$

C

$t^2$

D

$t^{\frac{3}{2}}$

View Solution

An object of mass 1000 g experiences a time-dependent force $\overrightarrow{\mathrm{F}}=\left(2 \mathrm{t} \hat{\mathrm{i}}+3 \mathrm{t}^2 \hat{\mathrm{j}}\right) \mathrm{N}$. The power generated by the force at time $t$ is :

A

$\left(2 t^2+3 t^3\right) \mathrm{W}$

B

$\left(2 t^2+18 t^3\right) \mathrm{W}$

C

$\left(3 t^3+5 t^5\right) \mathrm{W}$

D

$\left(2 t^3+3 t^5\right) \mathrm{W}$

View Solution

Power - Practice Questions & MCQ

Quick Facts

Solve by difficulty

Amity University-Noida B.Tech Admissions 2026

UPES B.Tech Admissions 2026

Concepts Covered - 1

Study it with Videos

Study other Related Concepts

Power Current Topic

Get Answer to all your questions

B.Tech/B.Arch Admissions OPEN

Amity University-Noida B.Tech Admissions 2026

Amrita University B.Tech 2026

VIT Bhopal University | B.Arch Admissions 2026

Somaiya Vidyavihar University B.Tech Admissions 2026

Indus University B.Tech Admissions 2026

VIT Bhopal University | Integrated M.Tech Admissions 2026

JEE Main

JEE Advanced

AP EAMCET

TS EAMCET

MHT CET

KCET

VITEEE

BITSAT

Colleges By Degree

Colleges By Branches

Colleges By Exam

By City

By State

BE/B.Tech

Diploma

Download Careers360 App

All this at the convenience of your phone

Scan and download the app