A block with a mass of 55 kg is pulled with a force of 220 N to the right. Assuming a frictionless surface, what will be the acceleration of the block?

a
9.8 m/s2

b
4.0 m/s2

c
0.25 m/s2

d
22 m/s2

The acceleration of an object can be calculated using Newton's second law of motion, which states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.

The net force acting on the block is the force pulling it to the right, which is 220 N. The mass of the block is 55 kg.

Using the formula for acceleration, a = F/m, where F is the net force and m is the mass, we can calculate the acceleration:

a = 220 N / 55 kg
a = 4.0 m/s2

Therefore, the correct answer is b) 4.0 m/s2.