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guapka [62]
1 year ago
5

The radius of a Circular racetrack is 50 m. if the race car can complete one lap in 20 seconds what is the speed of the race car


Physics
1 answer:
jonny [76]1 year ago
8 0

Answer:

15.71 m/s

Explanation:

circumference of the racetrack = 2πr

= 2πx50

= 314.16m

the circumference becomes the distance

speed= distance/time

= 314.14/20

= 15.71 m/s

kindly mark Brainiest

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In traveling a distance of 2.5 km between points A and D, a car is driven at 99 km/h from A to B for t seconds and 48 km/h from
Andreyy89

Answer:

d = 1.954 Km

Explanation:

given,

total distance, D = 2.5 Km

in stretch A to B =

speed = 99 Km/h = 99 x 0.278 = 27.22 m/s     time =t

in stretch B to C

time = 3.4 s

In stretch C to D

speed = 48 Km/h = 48 x 0.278 = 13.34 m/s     time =t      

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distance between A and B is equal to 1.954 Km.

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