1. what happens to the force required for an object to maintain circular motion if the period is halved (goes twice as fast around the circle)?
a) force doubles
b) force quadruples
c) force is halved
d) force is quartered
2. In a pulley problem involving an inclined plane:
a) the gravity need to be resolved into components
b) the tension need to be resolved into components
c) the friction need to be resolved into components
d) the direction convention is the same for both blocks
3. Which of the following statements is true:
a) a acceleration of free fall objects on Earth is approximately 9.8 m/s^2 [down]
b) heavier objects in free fall accelerate faster than light objects
c) in projectile motion, the initial speed is always equal to the final speed
d) none of the statements are true
0 answers