a particle covers one fourth of its distance with speed v and remaining three fourth with speed 2v. the average speed of particle is:1.8/5v,

Question

a particle covers one fourth of its distance with speed v and remaining three fourth with speed 2v. the average speed of particle is:1.8/5v,2.3/2v,3.4/3v,4.7/5v

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6 months 2021-07-17T12:29:27+00:00 2 Answers 3 views 0

Explanation: Speed is a variable in Physics defined by the rate at which an object go through a distance. It can be calculated as:

A fourth of distance with speed v takes:

The rest of the distance with speed 2v takes:

Average speed is given by:

Total time to cover the distance:

Total distance traveled:

d = 1

average = 1 ÷

The average speed of particle is 8/5v.

Explanation:

Given

Required

Determine the average speed

First, we need to determine the time spent on the journey

For the first

For the next

Average Speed is then calculated as thus:

Hence;