A moving object is at x = 4 m at t = 0 and at x = 14 m at t = 2 s. The average speed of this object is:

Which of the following is/are true according to Newton’s second law? (i)    an unbalanced force always brings a moving object to rest (ii)   an unbalanced force on an object always produces an acceleration on it (iii)   the acceleration of a moving object is directly proportional to the unbalanced force acting on it.

Which of the following is a fundamental unit? (i) kg/m3 (ii) m3 (iii) N (iv) m

A moving object initially at x = 5 m changes its position to x = 10 m in 2 s. What is the average velocity of this object?

Choose the statement that best describes momentum of a moving object.

A given space contains 600 g of water vapor. If 800 g of water vapor will saturate the space at the same temperature, what is the relative humidity of the space?

The unit of power is the watt (W). This is the same as:

Choose the statement that is NOT true about conduction

Which of the following is not a method of heat transfer?

What is the work done in lifting a 50 kg box 2 m vertically up?