Julie is cycling at a speed of 3.4 meters/second. If the combined mass of the bicycle and Julie is 30 kilograms, what is the kinetic energy?

Question

anonymous · Answer

Julie is cycling at a speed of 3.4 meters/second. If the combined mass of the bicycle and Julie is 30 kilograms, what is the kinetic energy?

anonymous · Answer

the formula for kinetic energy is $$k=1/2mv ^{2}$$. so u can square your distance then multiply it by mass and divide it by two

anonymous · Answer

im sorry your velocity not distance

anonymous · Answer

can i just have the answer lol

anonymous · Answer

may be we can try doing it together

anonymous · Answer

okay lets go... i dont know this

anonymous · Answer

A car moving with a velocity of 20 meters/second has
1.8 * 105 joules of kinetic energy. What is the mass of the car?

anonymous · Answer

so... first put $$3.4^{2}$$ in your calculator

anonymous · Answer

A car moving with a velocity of 20 meters/second has
1.8 * 105 joules of kinetic energy. What is the mass of the car?

anonymous · Answer

lets see what you got

anonymous · Answer

im on a different problem the one i sent

anonymous · Answer

okay have you got the other one figured out?

anonymous · Answer

no

anonymous · Answer

here is the first one $$(30\times(3.4)^{2})\div2$$....... plug it in you calculator and you will get the and the answer

the second one is almost like the first one.. are you familiar with arranging the equations?