2. A large rock is ejected from a volcano with a speed of 30m/s and at an angle 60. above the horizontal. The rock strikes the side of the volcano at an altitude of 10.0m lower than
its starting point. Calculate the horizontal displacement of the rock.
84.90m

How many meters will a car travel if its speed is 45 m/s in an interval of 11 seconds? question 2 options: a) 450 meters b) 495 meters c) 4.09 meters d) 498 meters

Arailroad car collides with and sticks to an identical railroad car that is initially at rest. after the collision, the total kinetic energy of the two cars is a) the same as before. b) half as much as before. c) one third as much as before. d) one fourth as much as before. e) twice as much as before.

Ais a machine that makes work easier when a single force is applied. a simple machine b compound machine c endangered machine d complex machine