Quick question plz.........If force acting on a body of mass 40kg is doubled. By how much will be the acceleration change?
2 answers:
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The strength of the thrust is 122 newtons.
The motion of the rocket is described by the second Newton's law, whose model is shown below:
(1)
Where:
- Thrust, in newtons
- Drag, in newtons
- Mass of the rocket, in kilograms
- Net acceleration of the rocket, in meters per square second
If we know that ,
and
, then the strength of the thrust is:
The strength of the thrust is 122 newtons.
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Answer:
Net force, F = 7 N
Explanation:
It is given that,
Initial kinetic energy of the car,
Final kinetic energy of the car,
Distance, d = 1 m
We need to find the average net force on the car during this interval. It is given by using the work energy theorem as :
Also, W = F.d d = distance and F = net force
F = 7 Newton
So, the average net force on the car during this interval is 7 newton. Hence, this is the required solution.