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17 votes
17 votes
(d) A force of 30 N is required to accelerate a skateboard at 1.5 m/s². How much force

would accelerate the same skateboard at 6.0 m/s²?

User Ole Helgesen
by
2.2k points

1 Answer

26 votes
26 votes

Answer:


\huge\boxed{\sf F = 120\ N}

Step-by-step explanation:

Firstly, we need to find the mass of the skateboard.

Using formula:

F = ma

Where,

  • Force = f = 30 N
  • Acceleration = a = 1.5 m/s²

30 = m (1.5)

Divide 1.5 to both sides

30/1.5 kg = m

20 kg = m

m = 20 kg

Now, finding the force:

Using the same formula.

F = ma

Where,

  • mass = m = 20 kg
  • Acceleration = a = 6 m/s²

F = (20)(6)

F = 120 N


\rule[225]{225}{2}

User Agchou
by
2.4k points