unit revision pq3
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Unit Revision PQ10
Q and A
Q1
Q2
Q3
Q3 continued
Q4
Q5 A horizontal force of 140 N is needed to pull a 60 kg box across the horizontal floor at constant speed. What is the value of the force opposing motion?
Q5 continued
Q6
Q7
Q8
Q9
Q10 Three blocks masses 2kg, 3kg and 5kg are connected to each other with light strings and are then placed on a smooth frictionless surface. See fig. below. Let the system be pulled with a force F from the side of lighter mass so that it moves with an acceleration of 1ms-2. T1 and T2 denote the tensions in the strings. Calculate the value of T1 and T2.
Q10 continued
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