Bonjovi242idn
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1. A car is being towed.If its mass is 175 kg and it accelerated at 5m/s2, how much net force is involved?
2. What is the mass of a truck if it produces a force of 14,000N while accelerating at a rate of 5 m/s2?
3. Suppose a ball of mass 0.60 kg is hit with force of 12 N. What is its acceleration?

4. If the ball in question no. 3 is increased twice at 24 N, what is the increased in acceleration?
a. 2m/s2 (same) b. 30 m/s2 (increased by half) c. 4 0 m/s2 (doubled) d. 60 ms2 (tripled)

5.Considering that: Force is directly proportional to acceleration and inversely proportional to mass, suppose that a sled is accelerating at a rate of 2m/s2. If the net force is tripled and the mass is halved, what then is the new acceleration of the sled?
a. Decreased by half b. doubled c. tripled d. quadrupled

Sagot :

Rantiararudsonidn

Answer:

1. f = ma

  f = (1750 kg) •(5 m/s2)

   f  = 875  N

2. m = f/a

  given

  f = 14, 000 N

 m = ?

  a = 5 m/s2

              m = 14, 000 N / (5 m/s2)

              m = 2800 kg

3. a = f/m

  a = 12 N / 0.60 kg

  a = 20  m/s2

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