Mechanics | Relativity Answers

A lever is used to lift a load of 320Kg. The effort applied is 210 N and it moves through a distance of 1.7 m. The load moves 345mm

Determine the following:

1. Mechanical Advantage
2. Displacement ratio

A metal particles travels down ward through a fluid that extend from plate A and plate B under the influence of magnetic field. If the particles is released from test at mid point. The distance= 100m and acceleration 45m/s. Determine the velocity when it reaches plate B.

Ball A with mass 0.85 kg is rolling at 3.5 m/s [N] when it collides with stationary Ball B with mass 1.15 kg. After the collision, Ball A is moving 2.4 m/s [N40oW]. Find the velocity of Ball B after the collision.

You push a shopping cart 200.0 m by exerting a force of 12.00 N onto the handle at an angle of 20o above the horizontal axis. If the cart experiences a force of friction of 2.00 N, calculate the total amount of work done on the cart.

what is the pressure 12.5m below the ocean? Use the sp. gr. = 1.03 for salt water.

A 1-kg ball moving at a velocity of 12m/s collides head-on with a 2-kg ball moving at 24 m/s in the opposite direction. Calculate the velocity of each ball after collision if (a) e=2/3, (b) the balls stick together and (c) the collision is perfectly elastic.

a mercury barometer reads the atmospheric pressure on top of a mountain as 74.5cmHg and the base of the mountain it reads 76cmHg. what is the height of the mountain

A fire hose ejects water at the rate of 60 kg of water per second at a velocity of 40 m/s. With what force must a fireman hold on the hose to keep it stationary?

a projectile has a momentum of 1.6 x 10^4 kg-m/s and a velocity of 200 m/s. What is its mass and its weight?