Newton's Law of Motion

A lift weighing $1000 \mathrm{kg}$ is moving upwards with an acceleration of $1 \mathrm{m} {\mathrm{s}}^{-2}$. The tension in the supporting cable is $\left(g=9.8 \mathrm{m} {\mathrm{s}}^{-2}\right)$

Three identical blocks of masses $m=2 \mathrm{kg}$ are drawn by a force $F=10.2 \mathrm{N}$ on a frictionless surface, then what is the tension (in $\mathrm{N}$) in the string between the blocks $B$ and $C$?

A player caught a cricket ball of mass $150 \mathrm{g}$ moving at a rate of $20 \mathrm{m} {\mathrm{s}}^{-1}$. If, the catching process is completed in $0.1 \mathrm{s}$, the force of the blow exerted by the ball on the hand of the player is equal to

Two masses  $m_1=5 \mathrm{kg}$ and  $m_2=4.8 \mathrm{kg}$ tied to a string are hanging over a light frictionless pulley. What is the acceleration of the masses when left free to move? ($g=9.8 \mathrm{m} {\mathrm{s}}^{-2}$ )

Under special circumstances, a body's

A body of mass $2 \mathrm{kg}$ has an initial velocity of $3 \mathrm{m} {\mathrm{s}}^{-1}$ along $x$-axis and it is subjected to a force of $4 \mathrm{N}$ in $y$-direction. The distance of the body from origin after $4$ seconds will be: (the body was subjected to force at the origin at $t=0$)

An air-tight cage with a parrot sitting in it is suspended from the spring balance. The parrot starts flying. The reading of the spring balance willEnable GingerCannot connect to Ginger Check your internet connection
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Three blocks $A,B$ and $C$ having masses $m \mathrm{kg}2 \mathrm{kg}$ and $3 \mathrm{kg}$ are attached by massless strings and ideal pulleys as shown in the figure. When the system is released from rest if the block ' $A$ ' remains stationary, the mass of block ' $$ ' is

A body of mass $m$ hangs at one end of a string of length $l$, the other end of which is fixed. It is given a horizontal velocity so that the string would just reach where it makes an angle of $60°$ with the vertical. The tension in the string at mean position is

The rough surface of a horizontal table offers a definite maximum opposing force to initiate the motion of a block along the table, which is proportional to the resultant normal force given by the table. Forces $\mathrm{F}1$ and $\mathrm{F}2$ act at the same angle $\mathrm{\theta }$ with the horizontal and both are just initiating the sliding motion of the block along the table. Force $\mathrm{F}1$ is a pulling force while the force $\mathrm{F}2$ is a pushing force. $\mathrm{F}2 > \mathrm{F} 1$ , because

Consider following forces: $\left(\mathrm{w}\right)$ Force due to tension along a string,$\left(\mathrm{x}\right)$ Normal force given by a surface, $\left(\mathrm{y}\right)$ Force due to air resistance and $\left(\mathrm{z}\right)$Buoyant force or upthrust given by a fluid. Which of these are electromagnetic forces?

A string passes over a smooth pulley with masses $4 \mathrm{kg}$ and $5 \mathrm{kg}$ attached to the ends of the string and hanging vertically. The tension in the string is