Question

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 *-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 1

(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 *-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.