Physics, asked by suruj7861, 1 year ago

43. A particle travels 10 m in first 5 sec and 10 m in next
3 sec. Assuming constant acceleration what is the
distance travelled in next 2 sec
(a) 8.3 m
(b) 9.3 m
(c) 10.3 m
(d) None of above​

Answers

Answered by VishalSharma01
121

Answer:

Explanation:

Given :-

Time taken by particle, t = 5 seconds

Distance covered by particle, S = 10m/s.

Using the second equation of motion,

Distance covered in first 5 sec-

10= 5u + 1/2(a × 25) ------ (1)

Given :-

Time taken by particle, t =  5 + 3 = 8 seconds

Distance covered by particle, S = 20 m.

Using the second equation of motion,

Distance covered in next 3 sec-

10 = 3u + 1/2(a × 9) --------(2)

To Find :-

Distance traveled.

Solution :-

On solving these 2 equations, we get value  

Velocity, u = 16/3

Acceleration a = -1.33

So the distance covered by particle in last 2 sec is-

S = 16/3 × 2 - 1/2 × 1.33 × 4

= 8 m

Hence, the distance traveled in next 2 seconds is 8 meter.

Answered by SnowySecret72
17

Answer:

8.25 m

Explanation:

•particles move=10 m and t=5 s

finding distance by using 2nd equation

S=ut+1/2at^2

10=u×5+1/2×a×5×5

10=5u+1/2×25a

10=5u+25a .........i)

•Again particles move=10 m,t=8 s and S=20

S=ut+1/2at^2

20=u×8+1/2×a×8×8

20=8u+64a/2 .......ii)

Solving i) and ii)

a=1/3 and u=7/6

Now for next 2 sec t=10

S=7/6×10+1/2×1/3×10×10

=170/6

Distance travelled in 2 sec=170/6-20

=50/6

=8.25 m

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