Calculate force with speed and mass....

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Calculating force in Newtons requires more than just speed and distance; the time of contact between the hand and the ball is also essential. The discussion focuses on estimating the force exerted by a hand on a 3kg ball. Basic kinematics can help determine acceleration if the distance traveled by the hand is known. Without the time parameter, the calculation remains incomplete. Understanding impulse is crucial for accurate force estimation.
Roderich Chenxu
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Hi forumners, is it possible to calculate force in Newtons given speed and distance? Or if I have to, I would say the ball weighs approximately 3kg?

Capture_2017_01_17_21_56_09.jpg


Thank you in advance.
 
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Your question is vague. Calculate the force of WHAT?

Zz.
 
Hi ZapperZ, calculating on the force of hand acting on the ball. Is this information enough?
 
Roderich Chenxu said:
Hi ZapperZ, calculating on the force of hand acting on the ball. Is this information enough?

Yes and no. We now know what force to estimate, but if you look at the concept of "Impulse", you'll notice that another parameter needs to be known: the time that the ball is in contact with the hand while it is being pushed. Either this is known, or it needs to be estimated.

Although, I suppose if we apply basic kinematics, we will be able to find the acceleration, given the distance traveled by the hand.

Zz.
 
I built a device designed to brake angular velocity which seems to work based on below, i used a flexible shaft that could bow up and down so i could visually see what was happening for the prototypes. If you spin two wheels in opposite directions each with a magnitude of angular momentum L on a rigid shaft (equal magnitude opposite directions), then rotate the shaft at 90 degrees to the momentum vectors at constant angular velocity omega, then the resulting torques oppose each other...

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