The velocity - time graph of a ball of mass 25g moving on road is as given below:
(a) how much force does the road exert on the ball to bring it to rest?
(b) what is the direction of the force exerted by the road?

Which of the following is an example of motion in two dimensions?

Calculate the volume of this regular solid. what is the volume of the cone? round your answer to the nearest hundredth

To place a communications satellite into a geosynchronous orbit at an altitude of 22,240 mi above the surface of the earth, the satellite first is released from a space shuttle , which is in a circular orbit at an altitude of 185 mi, and then is propelled by an upper-stage booster to its final altitude. as the satellite passes through a, the booster's motor is fired to insert the satellite into an elliptic transfer orbit. the booster is again fired at b to insert the satellite into a geosynchronous orbit. knowing that the second firing increases the speed of the satellite by 4810ft/s, determine (a.) the speed of the satellite as it approaches b on the elliptic transfer orbit, (b.) the increase in speed resulting from the first firing at a.