xt3rmin8_1987
New member
1)A 1.2kb object moving with a speed of 8m/s collides perpendicularly with a wall and emergences with a speed of 6 m/s in the opposite direction. If the object is in contact with the wall for 2.0 ms, what is the magnitude of the average force on the object by the wall?
2)at what rate is the gravitational force on a 2kg projectile doing work at an instant when the velocity of the projectile is 4 m/s directed 30° above the horizontal?
3 A 2kg object moving with a velocity of 5m/s is in the positive x direction strikes and sticks to a 3 kg object moving with a speed of 2 m/s in the same direction. how much kinetic energy is lost in the collision?
2)at what rate is the gravitational force on a 2kg projectile doing work at an instant when the velocity of the projectile is 4 m/s directed 30° above the horizontal?
3 A 2kg object moving with a velocity of 5m/s is in the positive x direction strikes and sticks to a 3 kg object moving with a speed of 2 m/s in the same direction. how much kinetic energy is lost in the collision?