Question

1. A 3000 kg truck travelling at 50 km/hr strikes a stationary 1000 kg car, locking the two
vehicles together.
A) What is the final velocity of the two vehicles?
B) How much of the initial kinetic energy is lost to the collision?

2.What is the gravitational force between two masses of mass 30 lbs and 50 lbs, separated by
a distance of 2 meters?

3. Hans Full is pulling on a rope to drag his backpack to school across the ice. He pulls upwards
and rightwards with a force of 25 Newtons at an angle of 35 degrees above the horizontal to
drag his backpack a horizontal distance of 150 meters to the right. Determine the work (in
Joules) done upon the backpack

4. A uniform 0.093 kg meterstick is supported at the 15 cm and 92 cm marks. When a 0.250 kg
object is placed at the 6.0 cm mark, what are the magnitudes of the forces supporting the
meterstick?

Answer 1

Date: Page No. lcoo ka V 13.89 m/s ke kinetic, enakuf-final Intial kela st 2 2 2