Problems 36.3 8: 36.4.
Consider the elevator shown in the gure below. The motor
system is comprised of an electric motor M that turns a belt
around the frictionless pulley P. The mass of the elevator E is
3000 kg. and the mass of the counterweightw is 200
Problem 3C.5 [15 pts].
A spring is used to stop a 50-kg package which is 2 M
moving down a frictionless 20 incline. The spring
has a constant k = 30 kN/m and (is held by cables so
that it is initially compressed 20 mm) or (is initially
Problem 3C2 [10 pts).
The last segment of the triple jump track-and-eld
event is the jump, in which the athlete makes a
nal leap, landing in a sand-lled pit. Assuming
that the velocity of a 70-kg athlete just before
landing is 9 m/s at an angle of 35 with
Dynamics Quiz #SC March 2, 2016 page 2
Problem 3C.1 [10 m). .
BlockA is travelling with a speed of F on a _. (1-|
frictionless smooth surface when the surface
suddenly becomes rough with a coeicient of
friction of M causing the block to stop after a
ME220 Dynamics Test 2
There are 3 problems equally weighted. For each problem, clearly indicate the problem knowns,
unknowns and which method best lends itself to solving the problem. Write solutions neatly and
indicate any steps in the analysis for consi