A 5. 0 kg object is suspended by a string(with negligible mass) from the ceiling of an elevator that is accelerating upward at 2. 6 m/s 2. What is the tension in the string?.

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

What are the phases shown in a and d called?

What is the mass of the same rock on the earth