Recent questions in Physics

0 votes

0 answers

Uniform Circular Motion When an object follows a circular path at a constant speed, the motion of the object is called uniform circular motion. The word uniform refers to the speed which is uniform (constant) throughout the motion. Although the speed does not vary, the particle is accelerating because the velocity changes its direction at every point on the circular track.The figure shows a particle P which moves along a circular track of radius `r` with a uniform speed `u`.For a particle performing uniform circular motion, choose the incorrect statement from the

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

Uniform Circular Motion When an object follows a circular path at a constant speed, the motion of the object is called uniform circular motion. The word uniform refers to the speed which is uniform (constant) throughout the motion. Although the speed does not vary, the particle is accelerating because the velocity changes its direction at every point on the circular track.The figure shows a particle P which moves along a circular track of radius `r` with a uniform speed `u`.Two cars `A and B` move along a concentric circular path of radius `r_A and r_B` with velocities `v_A and v_B`

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

Uniform Circular Motion When an object follows a circular path at a constant speed, the motion of the object is called uniform circular motion. The word uniform refers to the speed which is uniform (constant) throughout the motion. Although the speed does not vary, the particle is accelerating because the velocity changes its direction at every point on the circular track.The figure shows a particle P which moves along a circular track of radius `r` with a uniform speed `u`.A car runs at a constant speed on a circular track of radius 100 m, taking `62.8 s` for every circular

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

Uniform Circular Motion When an object follows a circular path at a constant speed, the motion of the object is called uniform circular motion. The word uniform refers to the speed which is uniform (constant) throughout the motion. Although the speed does not vary, the particle is accelerating because the velocity changes its direction at every point on the circular track.The figure shows a particle P which moves along a circular track of radius `r` with a uniform speed `u`.A particle is revolving at 1200 rpm in a circle of radius 30 cm. Then, its acceleration

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

According to Galileo’s experiment for a double inclined plane that are smooth, when a ball is released from rest on one of the planes rolls down and climb up the other of decreased slope, the final height of the ball

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

Which of the Newton’s laws of motion explain the concept of

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

If a running bus stops suddenly, our feet stop due to friction, but the rest of the body continues to move forward due

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

Suppose the earth suddenly stops attracting objects placed near surface. A person standing on the surface of the earth

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

When a car is stationary, there is no net force acting on it. During pick-up, it accelerates. This happens due

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

A smaller and a bigger iron balls are dropped from a small height on a glass pane placed on a table. Only bigger ball breakes the glass pane,

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

A rocket is going upwards with accelerated motion. A man sitting in it feels his weight increased 5 times his own weight. If the mass of the rocket including that of the man is `1.0 xx 10^4 kg`, how much force is being applied by rocket engine? (Take, `g = 10

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

The motion of a particle of mass m is described by `y=ut + gt^2`, find the force acting on the

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

A bullet of mass `0.04 kg` moving with a speed of `90 ms^(-1)` enters a heavy wooden block and stopped after `3s`. What is the average resistive force exerted by the block on the

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

A body of mass `6 kg` is acted on by a force so that its velocity changes from `3 ms^(-1)` to `5 ms^(-1)`, then change in momentum

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

While launching a satellite of mass `10^4 kg,` a force of `5 xx 10^5 N` is applied for `20s`. The velocity attained by the satellite at the end of `20s,`

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

The momentum p (in `kg-ms^(-1)`) of a particle is varying with time t (in second) as `p= 2 + 3t^2`.The force acting on the particle at `t=3 s` will

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

A machine gun fires a bullet of mass `40 g` with a velocity of `1200 ms^(-1)`. The man holding it can exert a maximum force of `144 N` on the gun.How many bullets can be fired per second at the

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

The force `F` acting on a particle of mass `m` is indicated by the force-time graph shown below. The change in momentum of the particle over the time interval from `0` to `8s`

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

A particle of mass `m` is moving in a straight line with momentum `p`. Starting at time `t = 0`, a force `F= kt` acts in the same direction on the moving particle during time interval `T,` so that its momentum changes from `p` to `3p`. Here, `k` is a constant. The value of `T`

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

0 votes

0 answers

A constant retarding force of `50 N` is applied to a body of mass `20 kg` moving initially with a speed of `15 ms^(-1)`. How long time does the body take to

asked Mar 19, 2022 in 11th Physics by varun (6.7k points)

Recent questions in Physics

Categories