Which of the following best describes the behavior of a material obeying Hooke’s Law? A) The material returns to its original shape after deformation.B) The material breaks under any load.C) The deformation is proportional to the applied load until the elastic limit.D) The material deforms permanently after removing the load.

An object moves in a circle of radius 5 m with a speed of 10 m/s. What is the centripetal acceleration? A) 10 m/s210 \, \text{m/s}^2B) 20 m/s220 \, \text{m/s}^2C) 50 m/s250 \, \text{m/s}^2D) 100 m/s2100 \, \text{m/s}^2

Which of the following statements is true for an object in free fall near Earth’s surface? A) The acceleration is zero.B) The velocity increases by 9.8 m/s every second.C) The displacement decreases uniformly.D) The speed remains constant.

According to Newton’s first law, what happens to an object in motion with no net external force? A) It accelerates.B) It slows down.C) It moves with constant velocity.D) It stops eventually.

A force of 50 N is applied to a 20 kg block on a horizontal surface. If μk=0.2\mu_k = 0.2, what is the net force acting on the block? (Take g=9.8 m/s2g = 9.8 \, \text{m/s}^2) A) 6 N6 \, \text{N}6NB) 10 N10 \, \text{N}10NC) 14 N14 \, \text{N}14ND) 30 N30 \, \text{N}30N

A 2 kg object moves in a horizontal circle of radius 3 m at a constant speed of 6 m/s. What is the centripetal force acting on the object?

A car travels 100 m in 5 seconds. What is its average speed? A) 10 m/sB) 20 m/sC) 25 m/sD) 50 m/s

Which of the following statements about static friction is true? A) It is always less than kinetic friction.B) It acts only when the object is in motion.C) It is generally greater than kinetic friction.D) It is independent of the nature of the surfaces in contact.

The concept of scarcity as used by economists refers to

The basic economic problem is