Classical Mechanics Answers

explain types of materials on basis of elastic properties of material.

a force 2N is applied from a point O to perpendicular distance 4m.find the torque due to this force.

explain unit vector and zero vector.

explain the principle of homogeneity of dimension.

write down change in gravitation acceleration for 10km.

write down kapler third law for timeperiod

write note on escape velocity.

write down gravitational law of newton.

A uniform beam in a roof structure has a weight of 180N it is supported in two places X and Y a distance 3.0m apart . A load is placed on the beam a distance of 0.80m from X .The support provided by Y is 220N
What is the value of load?

Suppose that a teacher driving a 1972 LeMans zooms out of a darkened tunnel at 29.3 m/s. He is momentarily blinded by the sunshine. When he recovers, he sees that he is fast overtaking a bus ahead in his lane moving at the slower speed of 14.3 m/s. He hits the brakes as fast as he can (his reaction time is 0.31 s). If he can decelerate at 3.3 m/s2, what is the minimum distance between the driver and the bus when he first sees it so that they do not collide?