A vehicle decelerates uniformly from 30 m/s to rest in 10 seconds. What is its acceleration? A) −3 m/s2-3 \, \text{m/s}^2B) 3 m/s23 \, \text{m/s}^2C) −2 m/s2-2 \, \text{m/s}^2D) 2 m/s22 \, \text{m/s}^2

A 5 kg object is suspended by a rope. What is the tension in the rope? (Take g=9.8 m/s2g = 9.8 \, \text{m/s}^2) A) 49 N49 \, \text{N}B) 9.8 N9.8 \, \text{N}C) 5 N5 \, \text{N}D) 98 N98 \, \text{N}

A box is pulled with a force of 50 N at an angle of 30° above the horizontal. If the horizontal component of the force moves the box, what is this component? A) 25 N25 \, \text{N}B) 43.3 N43.3 \, \text{N}C) 50 N50 \, \text{N}D) 75 N75 \, \text{N}

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 projectile is launched horizontally at 30 m/s from a 45 m high cliff. How long does it take to hit the ground? (Take g=10 m/s2g = 10 \, \text{m/s}^2) A) 2 sB) 3 sC) 4 sD) 6 s