# B Calculate force with speed and mass...

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1. Jan 18, 2017

### Roderich Chenxu

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?

2. Jan 18, 2017

### ZapperZ

Staff Emeritus
Your question is vague. Calculate the force of WHAT?

Zz.

3. Jan 18, 2017

### Roderich Chenxu

Hi ZapperZ, calculating on the force of hand acting on the ball. Is this information enough?

4. Jan 18, 2017

### ZapperZ

Staff Emeritus
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.