Question

Two cubes of masses 3 g and 6 g and sides of
length 2 cm and 3 cm respectively are placed on
a smooth table as shown in the figure. Calculate
the pressure experienced by the table due to the
system of boxes. [Take g = 10 m/s^2]
​

Answer 1

Answer:

At maximum extension of the spring, velocities of both blocks will be same

Conservation of momentum:

6*2.2 – 3*1.8 = (3+6)*V

V = 0.867 m/s

Conservation of energy:

1/2*3*1.8*1.8 + 1/2*6*2.2*2.2 = 1/2*(6+3)*0.867*0.867 + 1/2*512* X*X

X = 0.25 m = 25 cm