Question

Two blocks S and H having a mass

M = 3 kg and m = 2 kg are connected by a string as shown in Figure. The pulley is massless and the surface is frictionless.

a) Determine the magnitude of normal force acting on the sliding block S. (5 points).

b) Determine the acceleration of the block. (Hint: a =(m÷(M+m)×g) (3 points).

c) Determine the tension in the cord. (Hint: T = Ma) (2 points).

Answer 1

esaal maglty expert answer is 

a) Determine the magnitude of normal force acting on the sliding block S. (5 points).

From Newton 2nd Law

FN − Fg = Fnet

FN − Mg = m.ay

ay = 0

FN − Mg = 0

FN = Mg

FN = 3 × 10 = 30 N

b) Determine the acceleration of the block. (Hint: a =(m÷(M+m)×g) (3 points).

a =(m÷(M + m)) ×g

=(2÷(3+ 2))× 10

= 4 m/s^2

c) Determine the tension in the cord. (Hint: T = Ma) (2 points).

T = Ma

T = 3 × 4

T = 12 N