1. If a rocket accelerates from a rest at a rate of 40ms-2 for 10 seconds, the distance it will cover during this time i

[answerhappygod]

1. If a rocket accelerates from a rest at a rate of 40ms-2 for
10 seconds, the distance it will cover during this time is
A) 1000 m B) 2000 m C) 3000 m D) 4000 m

2. A tow truck exerts a force of 3000 N on a car, accelerating
it at 3 m/s-2. What is the mass of the car??
A) 3000 kg B) 1500 kg C) 1000 kg D) 500 kg
3. A player hits a ball with a bat. The action force is the
impact of the bat against the ball. The reaction to his force is
the
A) Weight of the ball B)Air resistance on the ball
C) Grip of the player’s hand against the ball D) Force of the ball
against the bat
4. A 3-kg mass is held 4 m above the ground. What is the
approximate potential energy of the mass with respect to the
ground?
A) 80 J B) 100 J C) 120 J D) 140 J
5. Two pool balls, each moving at 2m/s, roll toward each other
and collide. Suppose after bouncing apart, each move at 4m/s. This
collision violates conservation of
A) Momentum B) Kinetic energy C) Both A & B D) None of A
& B