1. Lirio is exerting a force of 89 N on a nice boulder in her swamp. The nice boulder is 68 kg. What is the acceleration of the nice boulder? 2. If Renae has a mass of 85 kg, and you exert a force of 45N on her, what would her acceleration be?

CAN I PLEASE GET HEPL ON THESE 2 I NEED TO KNOW THE EQUATIONS!!!

Step-by-step explanation:

1.

F=ma

89=68a

a=89/69 units/s²

2.F=ma

45=85 a

a=45/85=9/17 units/s²

Problem 1

Approximately 1.3 m/s^2

Work Shown:

We'll use the formula F = m*a, which is from Newton's second law.

The force applied is F = 89 newtons. The mass of the boulder is m = 69 kilograms. This means,

F = ma

89 = 69*a

a = 89/69

a = 1.28985507246377

a = 1.3

I rounded to 2 sig figs because the other given values (89 and 69) are to 2 sig figs as well.

Problem 2

Approximately 0.53 m/s^2

Work Shown:

We'll follow the same idea as problem 1

This time we are given F = 45 and m = 85

So,

F = ma

45 = 85*a

85a = 45

a = 45/85

a = 0.52941176470589

a = 0.53

The acceleration is roughly 0.53 m/s^2, which means that for every second, the speed is increasing by roughly 0.53 m/s.

3

step-by-step explanation: