Question

Two blocks of masses M1 and M2 are connected by a flexible but
inextensible string as shown in the figure. Assuming the coefficient of
friction between block M1 and horizontal surface to be u find the
acceleration of the masses and tension in the string
Assume M1= 10 kg and M2 = 5 kg, p = 0.25.
​

Answer 1

Answer:

Explanation:

N3) Masses m1 and m2 are connected by a massless rope slung over a massless,

frictionless pulley. Assume m2>m1. The pulley and the masses are inside a vat containing

water, and each of the masses experiences a drag force equal in magnitude to |FDRAG| =

bv2

; b is the same for both masses. The drag forces cause the masses to reach a terminal

velocity, vT. You may neglect any effects due to buoyancy.

1. When the terminal velocity is reached, what is the acceleration of mass m2?

a. The acceleration of m2 is upward.

b. The acceleration of m2 is downward.

c. The acceleration of m2 is zero.

2. Find an expression for the terminal velocity, vT.

a.

g

b

m m

vT

2

2

2  1



b.

g

b

m m

vT

2

2  1



c.

g

b

m m

vT

2

2  1



d.

g

b

m m

vT

2  1



e.

g