Recent content by jim_ringo

Yes that is what the problem is asking

so the answer would be true?

so just that little bit of resistance from the tires and the air hitting the body of the car prevents the car from accelerating,correct?

Ah, wind resistance and friction between the road and tires...and then there's also the some power loss due to the weight of the drive train components.

Homework Statement a cars engine produces constant power therefore the cars speed will increase at a constant acceleration. is this true or false Homework Equations Power=w/t work=fd so P=mad/t The Attempt at a Solution so if p is constant it appears a must be constant...

c) Let Va be the speed you found in part (a), and let Vb be the speed you found in part (b). Which of these two speeds is larger? Justify your answer mathematically, with comments as necessary. For Va I have Va=dsqrt(g/2h) For Vb I have Vb=(dg-Ash)/(g(2sqrt(2h/g)-tsub b)) How can I...

That version of d is the distance the car moves minus the initial velocity times the braking time d=(d-Vnaught Tb) Therefore am I correct? Thanks

corrections I have made some corrections to my work and would like to know if I am correct. I used the formula x-x naught= Vnaught t +1/2at^2 Balloons accelration= g Height= h Velocity of car=Vnaught The Vnaught of the balloon is zero. So I said h=Vnaugh t +1/2 gt^2 therefore t...

Homework Statement You are driving at a constant speed on a straight highway that passes under an overpass. At time , when your car is a distance from the overpass, a prankster on the overpass releases a water balloon from rest from a height above the highway below. Answer the following...