A horizontal force of 82 N pushes a 12 kg block up a frictionless incline that m
ID: 1954082 • Letter: A
Question
A horizontal force of 82 N pushes a 12 kg block up a frictionless incline that makes an angle of 29° with the horizontal.
(a) What is the normal force that the incline exerts on the block? N
(b) What is the acceleration of the block? (Hint: assume up the block as the positive direction.)
the block of mass m slides across a frictionless floor and then up a frictionless ramp. The angle of the ramp is and the speed of the block before it starts up the ramp is v0. The block will slide up to some maximum height h above the floor before stopping. Show that h is independent of m and by deriving an expression for h in terms of v0 and g.
h =
Explanation / Answer
my friend
for the first question
N= mg cos
= 102.855
F - mgsin = ma
a= 2.082 m/s^2