You push your backpack, mass 2.8 kg across the desk with a force of 49.3 N. Calculate the acceleration of the backpack. Neglect friction forces and give your answer to 3 significant figures.

F=ma..Neglect frictional 4ces....a=49.3/2.8

To calculate the acceleration of the backpack, we can use Newton's second law of motion, which states that the acceleration of an object is directly proportional to the net force applied to it and inversely proportional to its mass. The formula for calculating acceleration is:

acceleration (a) = net force (F) / mass (m)

Given:
Net force (F) = 49.3 N
Mass (m) = 2.8 kg

Now, let's substitute the given values into the formula:

acceleration (a) = 49.3 N / 2.8 kg

Calculating this using a calculator:

acceleration (a) ≈ 17.61 m/s^2

Rounding to three significant figures, the acceleration of the backpack is approximately 17.6 m/s^2.