(C) Given: Mass $m = 0.1\, kg$,initial velocity $u = 10\, m/s$,final velocity $v = 0\, m/s$,and distance $s = 50\, cm = 0.5\, m$.Using the third equat

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

(C) Given: Mass $m = 0.1\, kg$,initial velocity $u = 10\, m/s$,final velocity $v = 0\, m/s$,and distance $s = 50\, cm = 0.5\, m$.Using the third equation of motion: $v^2 = u^2 + 2as$.Substituting the values: $0^2 = (10)^2 + 2 \cdot a \cdot 0.5$.$0 = 100 + a$,which gives deceleration $a = -100\, m/s^2$.The magnitude of the retarding force is $F = m|a|$.$F = 0.1\, kg \cdot 100\, m/s^2 = 10\, N$.Thus,the value of $'x'$ is $10$.

Class 11 Physics Newton's Laws of Motion and Friction Mix Examples-Newton's Laws of Motion and Friction

Medium

$A$ bullet of mass $0.1\, kg$ is fired into a wooden block to pierce through it,but it stops after moving a distance of $50\, cm$ into it. If the velocity of the bullet before hitting the wood is $10\, m/s$ and it slows down with uniform deceleration,then the magnitude of the effective retarding force on the bullet is $'x'\, N$. The value of $'x'$ to the nearest integer is:

JEE MAIN 2021 All JEE MAIN

A
$7$
B
$8$
C
$10$
D
$12$

Explore More

Browse All

Question Bank

All Subjects

Class 11 Questions

Class 11

Physics Questions

Chapter

Newton's Laws of Motion and Friction

Subtopic

Mix Examples-Newton's Laws of Motion and Friction

Previous Year

JEE MAIN 2021 Paper All JEE MAIN years →

The upper half of an inclined plane of inclination $\theta$ is perfectly smooth,while the lower half is rough. $A$ block starting from rest at the top of the plane will again come to rest at the bottom if the coefficient of friction between the block and the lower half of the plane is given by:

MediumAIPMT 2013

View Solution

$A$ car accelerates on a horizontal road due to the forces exerted by

Easy

View Solution

Two cars of masses $m_1$ and $m_2$,joined back to back by a massless compressed spring,are at rest on a horizontal rough road. When the compression of the spring is suddenly removed,the cars move away from each other and come to rest due to friction. If the frictional force is the same on both cars,what is the ratio of their stopping times?

EasyAP EAMCET 2017

View Solution

Three weights $A, B$ and $C$ are connected by strings as shown in the figure. The system moves over a frictionless pulley. The tension in the string connecting $A$ and $B$ is (where $g$ is acceleration due to gravity):

Medium

View Solution

Two carts are pushed apart by the explosion of a charge placed between them. $A$ cart of mass $100 \ kg$ stops after traveling a distance of $18 \ m$. What distance will a cart of mass $300 \ kg$ travel before stopping? The coefficient of friction $\mu$ between the carts and the ground is the same for both.

Medium

View Solution

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial

For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free

For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo

Similar Questions

The upper half of an inclined plane of inclination $\theta$ is perfectly smooth,while the lower half is rough. $A$ block starting from rest at the top of the plane will again come to rest at the bottom if the coefficient of friction between the block and the lower half of the plane is given by:

$A$ car accelerates on a horizontal road due to the forces exerted by

Three weights $A, B$ and $C$ are connected by strings as shown in the figure. The system moves over a frictionless pulley. The tension in the string connecting $A$ and $B$ is (where $g$ is acceleration due to gravity):

Vedclass Test Series

Exam Paper Generator

Online Exam Module