An object with a mass of 7.8 kg is pulled on a horizontal surface by a horizontal pull of 50 n to the right. the friction force on this object is 30 n to the left. what is the acceleration of the object? 0.16 m/s^2
10 m/s^2
2.6 m/s^2
6.4 m/s^2

2.6 m/s²

Explanation:

m = mass of the object = 7.8 kg

Consider the right direction as positive and left direction as negative

F = horizontal applied force towards right = 50 N

f = frictional force acting towards left = - 30 N

a = acceleration

Force equation for the motion of the object is given as

F + f = ma

50 - 30 = (7.8) a

a = 2.6 m/s²

the focus of lesson 1 is newton's first law of motion - sometimes referred to as the law of inertia. newton's first law of motion is often stated as. an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

explanation: