A 1.5 kg block sliding on a rough horizontal surface (coefficient of friction of 0.34) is attached to one end of a horizontal spring (k = 200 N/m) which has its other end fixed. If this system is displaced 0.20 m horizontally from the equilibrium position and released from rest, how fast is the block moving when it passes the equilibrium position for the first time?

Aprojectile is launched horizontally 10m above the ground and with an initial velocity of 15 m/s. a) sketch the trajectory using an appropriate coordination system. b) how long for the projectile to reach the ground. c) how far did projectile travel horizontally before striking the ground. d) determine the projectilex & y position at t-1.3s e) determine the magnitude and direction of projectile velocity at t= 1.3s f) determine the magnitude and direction of projectile acceleration at t-1.3s

In what direction does the medium move relative to the direction of the wave? explain.

Which of the following is an example of motion in two dimensions?