Mechanics | Relativity Answers

what is the total displacement of a boy who walks 10 m, north; 2m, west; and 8m east?

An object travels 5m, 10m, 15m, and20m in four successive seconds. How will you describe its motion?

If a car starts from rest and accelerates at 5.0 m/sec2 for 6.0 seconds, how far did it travel and how fast was it moving at the end of 6.0 seconds?

a mass of 1kg is suspended form a spring with a shiftness constant of 24N/m. If the undamped frequency is 1.156 times the damped frequency. Calculate the damping factor?

A cyclist moves his cycle from rest with an acceleration of 1m/s squared, for 20 seconds and then he moves with uniform velocity for 1 minute. Finally he applies brakes and stops with a negative acceleration of 2 m/s squared. Determine total distance covered by the cyclist.

car A is travelling at 25 m.s-1 when it passes point X. At exactly the same time, car B, travelling towards A at 20 m.s-1, passes point Y. X and Y are 225 m apart. calculate the distance that B travels from the time it passes point Y until it meets A.

Derive an expression for the work done when a body is pulled down along the inclined plane with constant speed.

a ball is thrown upward with an initial horizontal velocity of 8 m/s ,and an initial vertical veocity of 40 m/s

find Vo (V knot)
find the position and velociy of the ball after 2.5 secs
find th and h
find tr and r

kinematic equations

A person walks for 60 miles due east, then 20 miles due west in a time of 10 seconds. What is the person's average speed?