CBSE Class 7 Answered
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
Expert Answer
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
Concept Videos
CBSE 7 - Science
Asked by damarlapallimahesh | 23 Jun, 2022, 08:14: PM
ANSWERED BY EXPERTCBSE 7 - Science
Asked by yamantakkarodpati38.7tpstl | 18 Jul, 2020, 05:09: PM
ANSWERED BY EXPERTCBSE 7 - Science
Asked by mamta021082 | 26 Jun, 2020, 09:23: PM
ANSWERED BY EXPERTCBSE 7 - Science
Asked by 20170163881 | 08 May, 2020, 11:24: AM
ANSWERED BY EXPERTCBSE 7 - Science
Asked by VAshwika23 | 18 Dec, 2019, 06:46: AM
ANSWERED BY EXPERTCBSE 7 - Science
Asked by rvmitteygr | 13 Sep, 2019, 09:34: PM
ANSWERED BY EXPERTCBSE 7 - Science
Asked by sujayavi2 | 09 Oct, 2018, 10:08: AM
ANSWERED BY EXPERTCBSE 7 - Science
Asked by sahooarupkumar3 | 05 Oct, 2018, 01:01: PM
ANSWERED BY EXPERTCBSE 7 - Science
Asked by Shreeya Nemani | 28 Aug, 2018, 08:23: PM
ANSWERED BY EXPERTCBSE 7 - Science
Asked by Shreeya Nemani | 28 Aug, 2018, 08:17: PM
ANSWERED BY EXPERT
