A bike rider approaches a hill with a speed of 8.5 m/s. The total mass of the bike and the rider is 85 kg. Find the kinetic energy of the bike and the rider. If the rider coasts up the hill calculate the height at which the bike will come to a stop. (h=PE/mgh) Please help me

KE=3070.625 J

Height = 3.686 m

mass of bike+rider=85 kg

velocity = 8.5 m/s

Conservation of energy :

(KE+PE)₁ (downhill) = (KE+PE)₂ (up the hill)

PE₁=0⇒h=0

KE₂=0⇒v=0(stop), so equation becomes :

KE₁=PE₂

the law of conservation of mass states that in a chemical reaction, the total mass of reactants is equal to the total mass of products. because atoms are only rearranged in a chemical reaction, there must be the same number of sodium atoms and chlorine atoms in both the reactants and products

because of all the things that happen around the us, many people get into arguments which sadly could get physical, but we should actually make a change for that.