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question_answer1) When a body is stationary:
question_answer2) A batsman hits back a ball straight in the direction of the bowler without changing its initial speed of 12 m/s. If the mass of the ball is 0.15 kg, determine the impulse imparted to the ball. (Assume linear motion of the ball)
question_answer3) A force of 5 N gives a mass \[{{M}_{1}},\] an acceleration equal to \[8\,\,m/{{s}^{2}}\] and \[{{M}_{2}}\] an acceleration = 24 m/s2. What is the acceleration if both masses are tied together?
question_answer4) A player stops a football weighing 0.5 kg which comes flying towards him with a velocity of 10m/s. If the impact lasts for \[\frac{1}{50}\] th sec and the ball bounces back with a velocity of 15 m/s, then the average force involved is:
question_answer5) For years, space travel was believed to be impossible because there was nothing which rockets could push off of in space in order to provide the propulsion necessary to accelerate. This inability of a rocket to provide propulsion is because:
question_answer6) A ball of mass m is thrown vertically upwards. What is the rate at which the momentum of the ball changes?
question_answer7) Calculate the change in momentum of a body weighing 10 kg when its velocity decreases from 20 m/s to 0.2 m/s.
question_answer8) Which of the following statements given below is correct? Statements 1: The pressure in a liquid is the same at all points at the same horizontal level. Statement 2: As we go deeper in a liquid, the pressure increases.
question_answer9) If we immersed on objects in a liquid, it experiences, an upward force. The upward force acting on the object is called:
question_answer10) Whenever an object falls from a certain height it speed increased continuously because :
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