A cyclist moving on a circular track of radius 50m completes one revolution in 4 minutes. What is his
(a) average speed
(b) average velocity in one full revolution?
please full answer solve karkar dikha do
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A cyclist moving on a circular track of radius 50m completes one revolution in 4 minutes. What is his
(a) average speed
(b) average velocity in one full revolution?
please full answer solve karkar dikha do
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Explanation:
As the distance of the circular track is = 2πr. for perimeter of circle
radius = 50 m = 1/20 km
Putting the radius to find distance = 2*π*1/20
distance =1/10π
time= 4 min= 1/25 hrs
av speed = t distance/t time
speed= 1/10π/1/25
speed=11/7
velocity will be = 0
because displacement is zero
ANSWER
a) 1.308m/s
b)0
EXPLANATION
a) radius = 50m , time = 4 min= 4*60s=240s
average speed= total distance covered/ total time
= total distance = circumference of circle= 2r
= 2* 3.14 * 50= 314m
average speed= 314/ 240= 1.308m/s
b) average velocity=0
because since displacement = 0 as initial and final positions are same we know velocity = displacement/ time= 0/time=0