A cannonball launched with a speed of 46m/s moves upwards to maximum height. Assume the speed changes steadily. Determine all unknowns.
I need initial average and final velocity but can only get average.

Aball has an initial velocity of 3 m/s. if there is no friction, what is the highest it could roll?

Two students, each riding bicycles, start from the same apartment building and ride to the same building on campus, but each takes a different route. the first student rides 1100 m due east and then turns due north and travels another 1430 m before arriving at the destination. the second student heads due north for 1930 m and then turns and heads directly toward the destination. at the turning point, how far is the second student from the destination?

If you wanted to move an electron from the positive to the negative terminal of the battery, how much work w would you need to do on the electron? enter your answer numerically in joules.