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MAXImum [283]
3 years ago
8

A race car has a mass of 710 kg. it starts from rest and travels 40.0 m in 3.0 s. the car is uniformly accelerated during the en

tire time. what is the net force exerted on it?
Physics
2 answers:
Oksanka [162]3 years ago
4 0
6300N is the answer i believe

goblinko [34]3 years ago
3 0

<span><span>6300 newtons.

If this was the appropriate answer make sure to mark as the brainliest!
-procklown</span></span>

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An object of 4 kg has a speed of 6 m/s and moves a distance of 8 m. What is its kinetic energy in joules.
11Alexandr11 [23.1K]

Answer:

The answer to your question is Ke = 72 J

Explanation:

Kinetic energy depends on the speed of and object and its mass.

Data

mass = m = 4 kg

speed = v = 6 m/s

distance = d =  8 m

Kinetic energy = ke = ?

Formula

Ke = (1/2) mv²

Substitution

Ke = (1/2) (4)(6)²

Simplification

Ke = (1/2)(4)(36)

Ke = (1/2)(144)

Ke = 72 Joules

Result

Ke = 72 J

3 0
3 years ago
Two soccer players kick a soccer ball back and forth along a straight line. The first player kicks the ball 16 m to the right to
Oliga [24]

Answer:

a

The total distance is d_t =19.1 m

b

The displacement is

  D_t = 12.9m

Explanation:

From the question we are told that

        Distance traveled by the ball for first player d_f = 16m to the right

        Distance  traveled by the ball for second player d_s = 3.1 m to the left

       

The total distance traveled by the ball is mathematically represented as

                   d_t = d_f + d_s

Substituting values

                  d_t = 16 + 3.1

                  d_t =19.1 m

The displacement is mathematically represented as

              D_t  = d_f -d_s

This is because displacement deal with direction and from the question we are told that right is positive and left is negative

          Substituting values  

                D_t = 16 -3.1

                 D_t = 12.9m

     

5 0
3 years ago
A SUV is towing a trailer and accelerating on a level road. The force that the SUV exerts on the trailer is _____. equal to the
stepladder [879]

Answer:

equal to the force the trailer exerts on the road.

Explanation:

Because of the tension of the rope, the force that the SUV exerts on the trailer is equal and opposite to the force that the trailer exerts on the SUV. This is explained in Newton's third law of motion, which states that for every action, there is always an equal and opposite reaction.

3 0
3 years ago
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