Physics, asked by mdahad2005, 11 months ago

A particle moving in a straight line covers half of Total distance with a speed of 3 metre per second the other half of the distance is covered into two equal time interval with a speed of 4.5 metre per second and 7.5 metre per second . the average speed of the particle during the motion ​

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Answered by guptasahil382
2

Answer:6 m/s

Explanation:

Average velocity=V1 +V2 ÷2

=7.5+4.5/2=12/2

=6 m/s


mdahad2005: wrong answer
mohit9998: wrong
Answered by Jiya22
2

Brainly.in

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Jiya22

Secondary SchoolPhysics 13+7 pts

A particles moving in a straight line covers half of the total distance with a speed of 3 m/s. The other half of the distance is covered in two equal time intervals with speeds of 4.5 m/s and 7.5 m/s. The average speed of the particle during this motion is (a) 4 m/s (b) 5 m/s (c) 5.5 m/s (d) 4.8 m/s

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rahulsirtm

Rahulsirtm Ambitious

5.5 is the average speed

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Jiya22

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Jiya22

Jiya22 Ambitious

Answer: a)4m/s is the correct answer

Explanation:

Let the distance covered be 2d.

Time taken to cover d

(T) = d/3 ....(since, t=d/s)

Now other half is covered in equal intervals of time.. let them be t.

d = 4.5t+7.5t

d=12t

t=d/12

Average Speed = Total distance/Total time

= 2d/( d/3+d/12+d/12)

= 2d/3d/6

= 4m/s

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