$A$ force of $10\, N$ moves a body with a constant speed of $2\, m s^{-1}$. Calculate the power of the body.
(20 W) The power $P$ is defined as the product of force $F$ and velocity $v$ when the force is applied in the direction of motion.
Given:
Force $F = 10\, N$
Velocity $v = 2\, m s^{-1}$
Formula:
$P = F \times v$
Calculation:
$P = 10\, N \times 2\, m s^{-1} = 20\, W$
Therefore,the power of the body is $20\, W$.
Given:
Force $F = 10\, N$
Velocity $v = 2\, m s^{-1}$
Formula:
$P = F \times v$
Calculation:
$P = 10\, N \times 2\, m s^{-1} = 20\, W$
Therefore,the power of the body is $20\, W$.
Explore More
Similar Questions
$(a)$ Can a body have energy without having momentum? Explain.
$(b)$ Can a body have momentum without having energy? Explain.
$(b)$ Can a body have momentum without having energy? Explain.
Medium
View SolutionName at least three commonly used units of energy.
Easy
View SolutionGiven below are a few situations. Study them and state in which of the given cases work is said to be done. Give a reason for your answer:
$(i)$ $A$ person pushing hard a huge rock,but the rock does not move.
$(ii)$ $A$ bullock pulling a cart up to $1 \, km$ on the road.
$(iii)$ $A$ girl pulling a trolley for about $2 \, m$ distance.
$(iv)$ $A$ person standing with a heavy bag on his head.
$(i)$ $A$ person pushing hard a huge rock,but the rock does not move.
$(ii)$ $A$ bullock pulling a cart up to $1 \, km$ on the road.
$(iii)$ $A$ girl pulling a trolley for about $2 \, m$ distance.
$(iv)$ $A$ person standing with a heavy bag on his head.
Easy
View Solution$(a)$ Define potential energy. Write an expression for potential energy of an object of mass $m$ raised through a height $h$.
$(b)$ Find the energy possessed by an object of mass $10 \, kg$ when it is raised to a height of $6 \, m$ above the ground. (Given $g = 9.8 \, m s^{-2}$)
$(b)$ Find the energy possessed by an object of mass $10 \, kg$ when it is raised to a height of $6 \, m$ above the ground. (Given $g = 9.8 \, m s^{-2}$)
Medium
View Solution$A$ light and a heavy body have equal kinetic energy. Which one is moving fast?
Easy
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo