Mechanics

Find The angle between two vectors a and n as |Ã.Ñ|=Ã.Ñ. Note ~ above head denotes vector sign. || Denaoted modulus

Learn more

8 Years agoGrade

2 Answers

Khimraj

8 Years ago

As per question

|A*B| = A*B

So ||A||B|sin $\Theta$ | = |A||B|sin $\Theta$

then

|sin $\Theta$ | = sin $\Theta$

So $\Theta$ $\epsilon$ [0, $\pi$ ].

Hope it clears. If you like answer then please approve it.

Khimraj

8 Years ago

As per question

|A.B| = A.B

So ||A||B|cos $\Theta$ | = |A||B|cos $\Theta$

then

|cos $\Theta$ | = cos $\Theta$

So $\Theta$ $\epsilon$ [0, $\pi$ /2] $\cap$ [3 $\pi$ /2, 2 $\pi$ ].

Hope it clears. If you like answer then please approve it.

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: 10 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

Find The angle between two vectors a and n as |Ã.Ñ|=Ã.Ñ. Note ~ above head denotes vector sign. || Denaoted modulus

Learn more

2 Answers

Khimraj

Khimraj

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