just a couple more questions
1.) The power needed to accelerate a projectile from rest to is launch speed v in a time t is 43.0 W. How much power is needed to accelerate the same projectile from rest to launch speed of 2v in a time of 1/2t?
2.)A ball is fixed to the end of a string , which is attached to the eiling at point P, which is at the top. the ball is positioned below it, what enables it to go back to point P? Hope this makes sense. Like swinging the ball basically
1 answer