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question_answer1) Gravel is dropped into a conveyor belt at a rate of 0.5 kg/s. The extra force required in newton to keep the belt moving at 2 m/s is : (a) 1 (b) 2 (c) 4 (d) 0.5
question_answer2) A boy sitting on the topmost berth in the compartment of a train which is just going to stop on the railway station, drops an apple aiming at the open hand of his brother situated vertically below his own hand at a distance of 2m. The apple will fall: (a) In the hand of his brother (b) Slightly away from the hand of his brother in the direction of motion of the train. (c) Slightly away from the hand of his brother opposite to the direction of motion of the train. (d) None of the above.
question_answer3) Consider the following statements : Assertion (A): A table cloth can be pulled from a table without dislodging the dishes. Reason (R): To every action there is equal and opposite reaction of these statements (a) Both A and R are true and R is the correct explanation of A. (b) Both A and R are true and R is not the correct explanation of A. (c) A is true but R is false. (d) A is false but R is true.
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