Solving Homework: Increasing Speed of 35kg Mass w/ 55N Force

AI Thread Summary
To solve the problem of a 35kg mass accelerating under a 55N force, first calculate the acceleration using the formula a = F/m, which results in an acceleration of 1.57 m/s². The objective is to determine the time required for the initial velocity of 40 m/s to double to 80 m/s. The relevant SUVAT equation can be used, specifically v = u + at, where v is the final velocity, u is the initial velocity, and a is the acceleration. By rearranging the equation to solve for time, it can be determined how long it takes for the speed to double. This approach provides a clear path to finding the solution.
Chris18
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Homework Statement



A body of mass 35kg moving with velocity Vox=40m/s is subjected to a constant Force of 55N acting in the same direction.How long does it take the speed to increase twice?

Homework Equations


I would be grateful if anyone could give me hand to solove it after i find the acceleration a= F/m...

The Attempt at a Solution

 
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I assume it means, how long does it take for the speed to double.
Are you familiar with the SUVAT equations?
 
I am to the most of them... Still I don't know which one to use. Could you give me a hand here?
 
Chris18 said:
I am to the most of them... Still I don't know which one to use. Could you give me a hand here?
In the usual form, there are five variables and five equations. Each equation involves a different four of the variables. Typically, you know three values and wish to find a fourth. So pick the equation involving those four.
 

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