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Question is present in the attachment i want its solution as soon as.
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Thanks in advance
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@ Dr S.M.
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Answered by
85
Mass, m = 2kg
Initial velocity, u = 4 m/s
Final velocity, v = 0
Time, t = 2s
Acceleration, a = (v-u)/t = -2m/s^2
Friction acting on the body, f = ma = 2×(-2) = -4 N
To keep the body moving at constant velocity, net force should be zero
If you apply force F to keep the velocity constant,
Net force = 0
Or F + f = 0
Or F - 4 = 0
Or F = 4 N
You need to apply 4 N force
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Answered by
87
Hello !
Here is your answer !
Given information :
v = 0
u = 4 m/s
t = 2s
Using :
v = u + at
= 0 = 4 + 2a
= - 4 / 2 = a
Therefore :
a = - 2 m/s^2 [ Retardation ]
Now!
The force required will be :
f = mass × accleration
= 2 × 2 = 4N ( Opposing force )
Hope it helps !
Here is your answer !
Given information :
v = 0
u = 4 m/s
t = 2s
Using :
v = u + at
= 0 = 4 + 2a
= - 4 / 2 = a
Therefore :
a = - 2 m/s^2 [ Retardation ]
Now!
The force required will be :
f = mass × accleration
= 2 × 2 = 4N ( Opposing force )
Hope it helps !
Correct ans...Ujjawal bro right...Thanks....Keep it up ⭐⭐⭐⭐
Thnq :)
Nice one bhayu... :)....well done
Thnq :)
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