help@askiitians.com

+91-735-322-1155

Mechanics> Kinematics...

question mark

A particle A of mass 10/7 kg is moving in the positive direction of x.Its initial position is x=0 & initial velocity is 1m/s.The velocity at x=10 is?

Nitesh Modi , 13 Years ago

Grade 12

9 Answers

Suraj Tripathi

the velocity at x = 0 will be 1m/s as you have not mentioned any acceleration...

Last Activity: 13 Years ago

dinesh sharma

without accn. this impossible to predict about velocity.

Last Activity: 13 Years ago

Gaurav

The answer is possible if the velocity will differentiate w.r.t time and hence we got tthe acceleration by using eqn. S=ut+1/2at×t

Last Activity: 8 Years ago

dinesh sharma

Well...we dont know the acceleration is constant or variable and this is the real problem.so its impossible to predict the motion.

Last Activity: 8 Years ago

Akhil Jaywant

Chutiye graph to de hutiye..... Graph bhii hotaa h is ques me......................................................

Last Activity: 8 Years ago

Basma

This question cannot be solved as it is not given whether it is uniform motion or non uniform motion or accelarated motion.the mass is not needed to find velocity.

Last Activity: 8 Years ago

Amarjit

If there is no acceleration in x direction then its velocity will remain throughout the motion, hence velocityvat x=10 will be 1m/s.

Last Activity: 8 Years ago

Mohit

This graph contains a graph which is a straight line ... Graph is in between power ( watt) and disp (m)The graphs starts from (0,2) and end on (10,4)By this find relation between power and displacement and integrate it by using formulae p = force × velocity And put force = mass and acc.And acc = v dv/dx and integrate it Thanks

Last Activity: 8 Years ago

Shubham Patil

Area under P-x graph

∫pdx=∫(m d/dt)vdx

∫mv^2dv=[mv^3/3]:(limits 1 to v both sides)

=10/7×1/3(v^3-1)

From graph:area=1/2(2+4)×10=30

Therefore 10/3×1/3(v^3-1)=30

v=4m/s

Hope it helps!!!

Cheers!!!

By Shubham Patil

Last Activity: 7 Years ago

LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

Full Live Access

Study Material

Live Doubts Solving

Daily Class Assignments

Three identical balls are placed on a frictionless horizontal surface touching each other. They stick to each other because of adhesive. Another ball of same radius and mass m is placed over the void created by the three balls. Find the forces applied by the balls kept on the floor to each other if the system remains in equilibrium.

mechanics

1 Answer Available

Last Activity: 4 Months ago

A car loaded with water having total mass 1000 kg moves on a straight horizontal Road starting from rest under the action of a force of 100 Newton. The water spills throw a small hole in the bottom at a rate of 0.1 KG per second the velocity of cart after 300 seconds is nearly.

11
21
31
41

mechanics

1 Answer Available

Last Activity: 4 Months ago

A metal strip clamped at one end vibrates with a frequency of 20 Hz and amplitude of 5 mm
at the free end, where a small mass of 2 g is positioned. determine
(i) The velocity of the end when passing through the zero position
(ii) The acceleration at maximum displacement
(iii) The maximum kinetic energy of the mass

mechanics

2 Answers Available

Last Activity: 3 Years ago

An object of mass m = 0.25 kg oscillates in a fluid at the end of a vertical spring of spring
constant kH = 85 N/m, see Fig.1. The effect of the fluid resistance is governed by the
damping constant b = 0.07kg/s.
(i) Find the period of the damped oscillation.
(ii) By what percentage does the amplitude of the oscillation decrease in each cycle?

mechanics

1 Answer Available

Last Activity: 3 Years ago

If a=x² find the displacement at t =3sec if body velocity at t= 0 sec is 0

mechanics

1 Answer Available

Last Activity: 3 Years ago

View all Questions