Abicycle rider sees a car up ahead, and slows down to avoid a collision. he starts off traveling at 15 m s and slows down to 5 m s in 7.5 s. find the acceleration of the bike rider.

Explanation:

As we know that acceleration is rate of change in velocity

So here we have

so we will have

t = 7.5 s

now we have

gpe = mass x gravity constant x height or… gpe = mgh

where… mass: measured in kilograms (kg)

gravity: gravity constant on earth = 10.00 m/s2

height: measured in meters (m)

gpe: measured in joules (j) or kilojoules (kj)

how do you solve gpe?

gravitational potential energy (gpe) is the energy an object has because of its position above the. ground.

gpe = mass x gravity constant x height or… gpe = mgh.

mass:

note: to earn full marks when solving science word problems, you must show your work:

formula.

example:

given values:

mass = 0.3 kg.