3. What does the area of v-t graph of moving object represent?
4. Pick out the only vector quantity in the following list
Temperature, pressure, impulse, time, power, total path length, energy, gra
coefficient of friction, charge.
5. Which one of the following statements is incorrect?
(A) Coefficient of sliding friction has dimensions of length
(B) Rolling friction is smaller than sliding friction.
(C) Frictional force oppose the relative motion.
(D) Limiting value of static friction is directly proportional to normal reaction
Section B
Answer in short for the following questions. (Each carries 2 marks)
6. A jet airplane travelling at the speed of 400 km h ejects its products
1200 km h relative to the jet plane. What is the speed of the latter with
ground?
7. "Explain Triangle method of vector addition."
OR
Rain is falling vertically with a speed of 30 ms 1. A woman rides a bicycle
north to south direction. What is the direction in which she should hold her
8. Determine the maximum acceleration of the train in which a box lying on it
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Explanation:
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