[s.a.l.m.a.n]

بسم الله الرحمن الرحيم

السلام عليكم ورحمة الله وبركاته

لدي اسئلة احتاج حلها بأسرع وقت ممكن لو سمحتوا

هي سهله لكن ابحث عن اجابه متكاملة لتقديمها ومناقشتها يوم الاحد

ممكن تساعدوني؟؟


A moving car has kinetic energy . If it speeds up until it is going four times as fast , how much kinetic energy does it have in comparison??




Comared with some original speed . how much work must the brakes of a car supply to stop a car that is moving four times as fast? How does stopping distance compare??





If you push a crate horizontally with 100 N across a 10m factory floor,and friction between the crate and the floor is a steady 70N , how much kinetic energy is gained by the crate??



A baseball and a golf ball have the same momentum . Which has the greater kinetic energy ??



At what point in its motion is the KE of a pendulum bob at a maximum? At what point is the PE at a maximum?
When its KE is at half its maximum valu, how much PE does it possesss??