Physics Answers

An object A of mass 4kg is connected via a light string of a negligible mass over a light frictionless pulley of object B with a mass of 2kg l. Object A slides horizontally on a rough surface while object B slides vertically downwards at 3 meters per second square as shown in the diagram velow

How to calculate the horizontal and vertical components of a 350 air Force pushing downwards and an angle of 55 degrees to the vertical

a hydrogen molecule of mass 3.3×10 raise to power of -27kg is moving with velocity 1.7×10×10×10m/s.calculate it's kinetic energy

A boat is heading straight across a river which is 600m wide. At the same time, the river current carries the boat 150m downstream use a vector diagram to find the resultant displacement of the boat when it reaches the opposite bank of the river

What must be the magnitude and direction of the equilibrant force needed to keep the pole in equilibrium

A boat is heading straight across a river which is 600mwide.at the same time, the river current carries the boat 150m downstream. Use a vector diagram to find the resultant displacement of the boat when it reaches the opposite bank of the river

A solid rigid body rotating about an axis has a mass of 20kg and a radius of 2m from the axis of rotation.if its angular velocity is 25 rad/s,calculate its rotational kinetic energy

Is it TRUE that angular momentum is conserved?

State the law that governs it

Explain the term Angular momentum of a body about an axis

Two spherical masses each of mass 2kg are connected by a loght rod of lenght 50cm,calculate its rotational inertia.

(i) about an axis normal to it through iys center

(ii) about an axis at one of its ends