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telo118 [61]
2 years ago
7

What is the acceleration of a 7 kg mass pushed by a 3.5 N force?

Physics
1 answer:
defon2 years ago
4 0

Answer:

0.5m/s²

Explanation:

F =m x a

3.5 = 7 x a

a = 3.5 /7

a = 0.5m/s ²

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7 0
3 years ago
Read 2 more answers
A particle moves along the x axis so that its velocity at time t is given by v(t)=
vodomira [7]

Answer:

a = 0.7267 ,  acceleration is positive therefore the speed is increasing  

Explanation:

The definition of acceleration is

         a = dv / dt

they give us the function of speed

         v = - (t-1) sin (t² / 2)

         a = - sin (t²/2) -  (t-1) cos (t²/2)  2t / 2

         a = - sin (t²/2) - t (t-1)  cos (t²/2)

the acceleration for t = 4 s

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          a = -sin 8 - 12 cos 8

remember that the angles are in radians

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6 0
2 years ago
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