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45 votes
45 votes
Katie pulls her wagon by the handle. She exerts a force of 60 N 30 degrees above the

horizontal. The force of friction from the sidewalk on the wagon is 30 N. The wagon has
a mass of 20 kg. What is the acceleration of the wagon?
a. 1.1 m/s²
b. 21.96 m/s²
c. 0 m/s²
d. 1.5m/s²

User Muqeet Khan
by
2.3k points

1 Answer

14 votes
14 votes

Answer:

a. 1.1 m/s^2

Step-by-step explanation:

Force of Application = (60)(cos30)

= 51.96 N

Force of Friction = 30 N

Total Force = 51.96 - 30

= 21.56 N

F = ma

21.56 = 20a

a = 1.09

a = 1.1 m/s^2

User Ady Arabiat
by
2.9k points