The mass of a stroller and the child it carries is 23.7 kg. A man pushes the stroller with a force of 142 N at an angle of 38.0° to the vertical. The stroller experiences a friction force of 24.0 N due to the brake accidentally being on. What is the stroller's acceleration forward?

A. 5.99 m/s2

B. 3.90 m/s2

C. 2.68 m/s2

D. 4.98 m/s2

Question

Physics

Walter Ashley

15 June, 20:24

The mass of a stroller and the child it carries is 23.7 kg. A man pushes the stroller with a force of 142 N at an angle of 38.0° to the vertical. The stroller experiences a friction force of 24.0 N due to the brake accidentally being on. What is the stroller's acceleration forward?

A. 5.99 m/s2

B. 3.90 m/s2

C. 2.68 m/s2

D. 4.98 m/s2

+3

Answers (1)

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Karsyn · Answer 1

The horizontal resultant force applied is 142*Cos (38) which is 135.62N

24N of opposing force

therefore the total force acting on the stroller is 135.62-24 = 111.62N

applying the formula f=ma

where f is force

m = mass

a = acceleration

plugging the values we get the stroller's acceleration forward as 3.90 m/s^2