hayz Posted March 23, 2006 Share Posted March 23, 2006 hey guys im having trouble working out this question. be great if ya can help. The position of a golfball is given by r = ((3t^2)i^ + (2t^2-1/6gt^3)J^)m. Calculate its velocity and its acceleration at time t = 1s (assume that g = 10ms^-2 i^ = i hat J^ = j hat Link to comment Share on other sites More sharing options...
Severian Posted March 23, 2006 Share Posted March 23, 2006 Do you know the definition of velocity and acceleration? Link to comment Share on other sites More sharing options...
s pepperchin Posted March 23, 2006 Share Posted March 23, 2006 You should explain to us how you are trying to do it. Link to comment Share on other sites More sharing options...
5614 Posted March 23, 2006 Share Posted March 23, 2006 And do you know you can use calculus (differentiation and integration) to change formulae for either position, speed/velocity or acceleration into each other? For example differentiating the equation for position (actually distance travelled from a point) will give you it's velocity. Link to comment Share on other sites More sharing options...
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