Math, asked by ugbrain, 1 year ago

how long will a man take to make a round of a circular fields of radius 21 m, cycling at the speed of 8 km/h?

Answers

Answered by brainlychamp

circumference of field= 2πr = 2 x 22/7 x 21 = 132 m= 0.132 km

time = distance/ speed = 0.132/ 8= 0.0165 hr = 59.4 seconds

∴ he will take 59.4 seconds

Previous Question

Next Question

Similar questions

Math, 7 months ago

The mid point of point M(4,1) and N(x,y) is (2, -4). Find the coordinates of N.

English, 7 months ago

etc.? 10. Ask your parents to show you TV programmes on animals, wild life and conservation on channels like the following: DD National, National Geographic, Discovery and Animal Planet.

Math, 7 months ago

$y3 - y2 + ya + y - a + 1$ ...

History, 1 year ago

who is called the father of taxonomy...

Science, 1 year ago

a)what is mater? write two properties of soilds and two properties of liquids b) give reasons for the following 1)ice at 0°c appers colder in the mouth than water 0°c 2) doctors advise to put the strips of wet cloth on the forehead of a person having high fever...

Science, 1 year ago

A body of mass 5 kg moving with a velocity 10m/s collides with another body of mass 20kg at rest and comes to rest velocity of the second body due to the collision is...

Math, 1 year ago

A body is projected vertically upwards. the times corresponding to height h while ascending and while descending are t1 and t2 respectively. then velocity of projection is...

Math, 1 year ago

A box contains 5 brown and 4 white socks. a man takes out two socks. the probability that they are of the same color is:...