Mechanics | Relativity Answers

A body of mass 2 kg is suspended by a rope and is pulled to a side by means of horizontal force, so that the rope makes an angle 45 degrees with the verticale the horizontal force is

An electron's position is given by vector r = 2.91t (i hat) - 4.01t2 (j hat) + 2.04 (k hat), with t in seconds and vector r in meters.
At t = 1.97 s, what is the magnitude of vector v?

What is the unit vector in the direction of
a, where a = <200, 400, −600> m/s2?

In an experiment involving the spiral spring, F is the restoring force and x the extension of the spring.The equation f =-kx gives the relationship between F and X. The graph of f/n against x/cm

what is the difference b/w HEIGHT & LENGTH?

Using illustrations, explain why a car moves faster to a pedestrian moving in opposite direction than to a bystander

A box is resting on the ground and you can assume its location is the origin of the system. A person applies a westward force of 31.7 Newtons (N) to the box while another applies a northward force of 43.5 N to the box. Determine the total force applied to the box.

Consider N identical masses connected through identical springs of force constant k.
The free ends of the coupled system are rigidly fixed at x = 0 and x = l. The masses
are made to execute longitudinal oscillations on a frictionless table.
i) Depict the equilibrium as well as instantaneous configurations.
ii) Write down their equations of motion, decouple them and obtain frequencies of
normal modes.

Establish the equation of motion of a damped oscillator. Solve it for a weakly
damped oscillator and discuss the significance of the results

A large man sits on a four-legged chair with his feet off the floor. The combined mass of the man and chair is 95.0 kg. If the chair legs are circular and have a radius of 0.500 cm at the bottom, what pressure does eachleg exert on the floor