Question

A rope connects a 40 kg block to a 30 kg block. The rope passes over a pulley at the top of a 37°
incline. The 40 kg block rests on the incline and the 30 kg block hangs from the pulley. Calculate
the acceleration of either block.

Answer 1

frictionless?

gravity down the incline: 40g*sin37
tension (+ up the plane): -40g*sin37+30g=totalmass*a
a= g(30-40sin37)/(70)

Answer 2

is it 471N?

Answer 3

It asks for acceleration in m/s^2
NOT
force in Newtons

Your numbers do not make sense.
In this problem, how on earth could you get an acceleration greater than free fall, 0.81 m/s^2 ??
If you use your calculator on the equation Bob gave you, you get a reasonable answer.

Answer 4

I mean 9.81 m/s^2 = g