A 2 kg object is swung in a horizontal circle of radius 3 m with a speed of 4 m/s. What is the magnitude of the centripetal force? A) 8 N8 \, \text{N}B) 16 N16 \, \text{N}C) 32 N32 \, \text{N}D) 64 N64 \, \text{N}

If the radius of a circular path is doubled while keeping the speed constant, the centripetal acceleration will: A) Remain the sameB) DoubleC) Be halvedD) Be quartered

A spring is stretched by 0.2 m under a load of 50 N. What is the spring constant? A) 100 N/m100 \, \text{N/m}B) 250 N/m250 \, \text{N/m}C) 50 N/m50 \, \text{N/m}D) 500 N/m500 \, \text{N/m}

A runner completes one lap around a 400 m track in 60 seconds. What is their average velocity? A) 6.67 m/sB) 400 m/sC) 0 m/sD) Cannot be determined

What is the force required to keep a 10 kg object moving at a constant velocity of 5 m/s on a frictionless surface? A) 0 NB) 10 NC) 50 ND) Cannot be determined

If the mass of one object is doubled, how does the gravitational force between it and another object change? A) HalvedB) DoubledC) QuadrupledD) Unchanged

A satellite orbits Earth in a circular orbit with a radius of 6.37×106 m6.37 \times 10^6 \, \text{m} (Earth’s radius). Its speed is 7,900 m/s7,900 \, \text{m/s}. What is the centripetal acceleration of the satellite?

What is the formula for kinetic friction? A) fk=μkNf_k = \mu_k NB) fk=μsNf_k = \mu_s NC) fk=μkmgf_k = \mu_k m gD) fk=μsmgf_k = \mu_s m g

What is the time of flight for an object thrown vertically upward at 15 m/s? (Take g=10 m/s2g = 10 \, \text{m/s}^2) A) 1.5 sB) 3.0 sC) 5.0 sD) 10.0 s

A ball is thrown upward with an initial velocity of 25 m/s25 \, \text{m/s}. How much time does it take to reach its maximum height? (Take g=9.8 m/s2g = 9.8 \, \text{m/s}^2).