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?
Initial speed of the roller coaster
acceleration of the roller coaster is given as
now for the speed after 3 s is given as
Distance traveled by the roller coaster