Grade 12th passMechanics

A person is throwing balls into the air one after the other. He throws the second ball when first ball is at the highest point. If he throwing 2 balls every second, how high do they rise?

Bincy

10 Years agoGrade 12th pass

3 Answers

ram charan

10 Years ago

v=0

time taken by each to reach hmax=1/2s

0=u-g/2

u=g/2

0=u^2-2gh

u^2=2gh

g^2/4=2gh

h=g^2/8g

h=2g/8

Ajit

10 Years ago

Time taken to reach maximum height - t= u\g
Therefore 1/2= u/ 20
Ten u= 5
Max height = u^2/2g
That is 5^2/20 = 1.25 m

Vandana Agrawal

9 Years ago

1 ball is taking 2s to travel from initial position to the final position.T=2u/g2=2u/10u=10m/sS=u*u/2gS=100/20S=5m

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: 9 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: 10 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

A person is throwing balls into the air one after the other. He throws the second ball when first ball is at the highest point. If he throwing 2 balls every second, how high do they rise?

Bincy

3 Answers

ram charan

Ajit

Vandana Agrawal

Other Related Questions on mechanics

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.11213141

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

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