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xxMikexx [17]
3 years ago
13

A car is moving with a uniform velocity.find out the force of which it is moving

Physics
1 answer:
olya-2409 [2.1K]3 years ago
7 0
If a car is moving with uniform velocity, then there is
no net force acting on it.

The force of the engine is exactly enough to balance
the forces of friction and air resistance against the car.

Also notice that there can't be any centripetal force, and the
car can't be on a curve.  If it's moving with "uniform velocity",
that means steady speed in a straight line.
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Answer:

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Explanation:

Precision of a measurement is the closeness of the experimental values to one another. Hence, experimental measurements are said to be precise if they are close to each other irrespective of how close they are to the accepted value. Precision can be determined by finding the range of each experimental value. The measurement with the LOWEST RANGE represents the MOST PRECISE.

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Set A: 1.5 - 0.8 = 0.7

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Set D: 3.1 - 2.9 = 0.2

Set B has the lowest range (0.1), hence, represent the most precise value.

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3 years ago
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2 years ago
4. A 1,000 kg truck moving at 10 m/s runs into a concrete wall. It takes 0.5 seconds for the truck to conipietery
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Answer:

\large \boxed{\text{h. 20 000 N}}  

Explanation:

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2. Calculate the force

\begin{array}{rcl}F & = & \dfrac{\Delta p}{\Delta t}\\\\& = & \dfrac{-10 000 \text{ kg$\cdot$m$\cdot$ s}^{-1}}{\text{ 0.5 s}}\\\\& = & \textbf{-20 000 N}\\\end{array}\\\text{The negative sign shows that the force is exerted opposite to the direction of motion.}\\\text{The magnitude of the force is $\large \boxed{\textbf{20 000 N}}$}

3 0
3 years ago
Read 2 more answers
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