Aroller coaster starts at the top of a straight track that is inclined at 30degrees with the horizontal. this causes it to accelerate at a rate of 4.9m/s^2(1/2g).

a. what is the roller coaster's speed after 3 seconds?
b. how far does it travel during that time?

Part a)

Part b)

Explanation:

Part a)

Initial speed of the roller coaster

acceleration of the roller coaster is given as

now for the speed after 3 s is given as

Part b)

Distance traveled by the roller coaster

energy can be converted from one form to another, but it cannot be created or destroyed in ordinary chemical or physical means. do not understand what you are asking but hope this

it was given as a lesson and guide for prayer.