Agolf ball is struck with a velocity of 80 ft/s as shown. determine the speed at which it strikes the ground at b and the time of flight from a to b

when insulating materials rub against each other, they may become electrically charged . electrons , which are negatively charged, may be 'rubbed off' one material and on to the other. the material that gains electrons becomes negatively charged. the material that loses electrons is left with a positive charge.

in physics zero. in muscle fatigue could be high