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The distance travelled by an object at various intervals are as follows

Distance (m) : 0     25     50      75    100

Time (s) :   0    2     4    6    8

What distance is the distance covered by the object at 5s and 7s

Asked by Shreeya Nemani | 28 Aug, 2018, 08:23: PM
The first step is to calculate the speed and check if it uniform at every instant of time.

At time = 2 sec
the distance travelled = 25 m
speed = distance/time = 25/2 = 12.5 m/s

At time = 4 sec
the distance travlled = 50 m
speed = distance/ time = 50/2 = 12.5 m/s

Hence, the motion is uniform, so the spped at every sec will remain the same.

Thus at time = 5 sec,
distance = speed x time = 12.5 x 5 = 62.5 m/s

at time = 7 sec,
distance = speed x time = 12.5 x 7 = 87.5 m/s
Answered by Abhijeet Mishra | 29 Aug, 2018, 10:34: AM

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