Questions
Choose the correct relation from the following for any motion in space
a
v→average =12v→t1+v→t2
b
v→average =r→t2-r→t1t2-t1
c
v→(t)=v→(0)+a→t
d
r→(t)=r→(0)+v→(0)t+12a→t2(The average stands for average of the quantity over the time interval t1 to t2)
detailed solution
Correct option is B
The relation (B) is true, others are false because relations (A), (C) and (D) hold only for uniformly acceleration motion.Talk to our academic expert!
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A car travels 8 km along east, then 15 km along north and then , km towards south-west. What will be the displacement from the starting point ?
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