Question

An object is launched at the initial velocity of v

0

=12 m/s up a

Θ=

20 degrees incline. The initial velocity is

along the incline.The coefficient of kinetic friction is

μ=

0.2

a) Draw a free body diagram and apply Newton’s Second Law.

b) Find the acceleration of the object as it moves up the incline. Find an expression first, then plug in

numerical values.

c) Find the distance travelled up the incline.. Find an expression first, then plug in numerical values.

d) After momentarily coming to a stop, the object now slides down the incline, Draw a free body diagram

for the object coming down the incline and apply Newton’s Second Law again.

e) Find the acceleration of the object as it goes down the incline. Find an expression first, then plug in

numerical values.

f) Find the velocity of the object at the bottom of the incline.

g) The object continues on a horizontal surface. If the coefficient of friction is the same as it is on the

incline, calculate the acceleration of the object on the horizontal surface and the stopping distance. Find

an expression first, then plug in numerical values.

Answer 1