Question

99 POINTS!!!!!!!!!!!!!!!!!!! HELPPPPPPPPPP 3 QUESTIONS!i!i!i

QUESTION 1

Which of the following accurately shows how to calculate the weight of a 20-kg object?

20 kg x mass of the Earth

20 kg x 9.8 m/s2

20 kg / mass of the Earth

20 kg / 9.8 m/s2


QUESTION 2

A greyhound's velocity changes from 10 meters per second to 15 meters per second in 0.5 second. What is the greyhound's average acceleration?

5 m/s2

10 m/s

10 m/s2

15 m/s

QUESTION 3

A sprinter can go from a state of resting to running at 7 m/s in just 3 seconds. What is the sprinter's average acceleration?

2.3 m/s2

3 m/s2

6.9 m/s

21 m/s

Answer 1

Hope this helps!

I checked all his answers and they are all correct.

1. 20 kg*mass of the earth

2. 10 m/s2

3. 2.3 m/s2

Answer 2

1. 20 kg*mass of the earth
2. 10 m/s2
3. 2.3 m/s2

Hope this helps!