Question

Case Study based question. Each question carries 1 mark. Distance is a scalar, displacement is a vector. Acceleration is the rate of change of velocity and is again a vector. The scalar can be added algebraically but not the vectors. 16. A particle undergoes a displacement of 3 m due north and 4 m due east. The net displacement is (a) 5 m (b) 7 m (c) 1 m (d) None of these 17. A particle is moving in a circle of radius 7 m. The distance travelled in two complete revolutions is (a) 44 m (b) 22 m (C) 88 m (d) 66 m 18. A particle executes one and a half revolution along a circle of radius 1 m. The displacement of the particle is (a) Zero (b) 1 m (C) 2 m (d) 3 m 19. A bus decreases its speed from 80 km/h to 60 km/h in 5s. The acceleration of the bus is: (a) 1.112 m/s2 (b) - 1.112 m/s2 (c) 4 m/s2 )​

Answer 1

Explanation:

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