- #1

- 115

- 0

(a) What is the normal force that the incline exerts on the block?

64.5N

from cos(20)*68.67

(b) What is the acceleration of the block? (Hint: assume up the block as the positive direction.)

3.35m/s2

from sin(20)*68.67 = 23.48

F = MA

23.48/7 = 3.35