1.

Fill in the blanks (a) Two boys cycling on the road with the same ................ are at rest relative to each other. (b) The motion in a ..........  line is rectilinear motion. (c) One to and fro motion of a clock pendulum takes time = .............(d) 36 km h-1 =  ..............  m s-1 (e) Total distance travelled =  ................ × total time taken. (f) The weight of a girl is 36 kgf. Her mass will be ....................kg. (g) The weight of a body is measured using a ........................

Answer»

(a) Two boys cycling on the road with the same speed are at rest relative to each other. 

(b) The motion in a straight line is rectilinear motion. 

(c) One to and fro motion of a clock pendulum takes time = 2 s 

(d) 36 km h-1 = 10 m s-1 

(e) Total distance travelled = average speed × total time taken. 

(f) The weight of a girl is 36 kgf. Her mass will be 36 kg. 

(g) The weight of a body is measured using a spring balance.



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