The table given below shows distance (in cm) travelled by the bodies A, B and C Read the data carefully B and C Read the data carefully and answers the questions which follow: Time Body A Body B Body C 1st Second 20 20 20 2nd Second 20 36 60 3rd Second 20 24 100 4th Second 20 30 140 5th Second 20 48 180 a) Which of the bodies is moving with: i) Constant speed ii) Constant acceleration b) Which of the three bodies covers :- i) Maximum distance in third second ii) Minimum distance in third second c) Which of the body is moving with non- uniform acceleration d) Sketch a distance- time graph for motion of I) Body A ii) Body C e) How much distance is covered by body C in 5s f) How much distance is covered by body B in last 3s g) Which of the bodies covers least distance in first three second
(b)The body C is moving with constant acceleration.
60-20/1=100-60/1=140-100/1=180-140/1=
(c) (i) Body C covers maximum distance 100cm in 3rd second.
(ii) Body A covers minimum distance in 3rd second.
(d) Body B is moving with non-uniform acceleration and body C is moving with uniform acceleration.
(e) Distance covered by body C in 5 seconds=20+60+100+140+180=500 cm=5 m
(f) Distance covered by body B in last 3 seconds=100+140+180=420 cm=4.2 m
(g)Body A covers least distance (20+20+20) 60 cm in first three seconds.