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Westkost [7]
3 years ago
15

A force of a 19 newtons is applied on a cart of 2 kilograms and experiences of frictional force of 1.7 newtons. What is the acce

leration of the cart

Biology
2 answers:
arsen [322]3 years ago
8 0

Answer:

a = 8.65 m/s²

Explanation:

Conceptual analysis

We apply Newton's second law

∑F = m×a Formula (1)

∑F: algebraic sum of forces in Newton (N)

m: mass in kg

a: acceleration in m/s²

Known data

F = 19 N

F_f = 1.7 N

m = 2 kg

Problem development

We can see in the attached figure the free body diagram of the cart and we replace the data in formula (1), considering that positive forces are the ones that go in the same direction of acceleration:

19 - 1.7 = 2 × a

17.3 = 2 × a

a = 17.3 ÷ 2

a = 8.65 m/s²

cestrela7 [59]3 years ago
6 0
Resultant force = mass × acceleration, therefore acceleration = resultant force ÷ mass
Resultant force = 19 - 1.7 = 17.3 N
acceleration = 17.3÷2= 8.65 ms-2
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