Question

Mike has a truck with wheels having the circumference of 14.28m and they make 4 revolutions in 7 seconds. the approximate speed of mike's truck is:

Answer 1

C = circumference of the wheel of truck = 14.28 m

D = distance traveled by the wheel of truck in single revolution

distance traveled by the wheel of truck in single revolution is same as the circumference of  the wheel of truck

hence D = C = 14.28 m

n = number of revolutions = 4

d = total distance traveled in "n" revolutions

total distance traveled in "n" revolutions is given as

d = n D

d = 4 x 14.28

d = 57.12 m

t = time taken by the truck to travel the distance = 7 sec

speed is given as

v = total distance/total time

v = d/t

v = 57.12/7

v = 8.16 m/s

Answer 2

Answer:hey here is your answer...........

when a body covers equal distances in equal interval of time then it is said uniform motion

when a body cover unequal distances in equal interval of time then it is said to be non uniform motion.

hope it is helpful

Explanation: