I assume that the figure shows one block hanging below the other.
First the bottom block because it only has one rope attached.
T up
mg down
F = m a
T - m g = m a
T = 14 (2+9.8) = 165.2 Newtons
Now the top block
New T up
165.2 down
m g down
T - 165.2 - 14*9.8 = 14 * 2
T = 330.4 Newtons
Two blocks are fastened to the ceiling of an elevator as in Figure P4.19. The elevator accelerates upward at 2.00 m/s2. The blocks both have a mass of 14.0 kg. Find the tension in each rope.
top rope:
bottom rope:
1 answer
1 answer