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kari74 [83]
3 years ago
9

? What is the magnitude of force required to accelerate a car of mass 1.7 × 103 kilograms by 4.75 meters/second2

Physics
2 answers:
KIM [24]3 years ago
4 0

f=ma

f=175.1*4.75m/s

f= 831.725N

densk [106]3 years ago
4 0

Answer:

F=8075 N

Explanation:

The second newton's law state the relation between the force and the acceleration by the formula:

F=m.a

Where F is the force, m is the mass and a is the acceleration.

It is known that the mass of this car is 1.7x10^3 kg and its acceleration is 4.75 m/s^2. Replacing in the formula:

F=(1.7x10^3 kg)(4.75 m/s^2)

F=8075 N

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7 0
3 years ago
A ship's wheel has a moment of inertia of 0.930 kilogram·meters squared. The inner radius of the ring is 26 centimeters, and the
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We can use the formula of the moment of inertia given by:

r\cdot F=I\alpha

Where:

r = Distance from the point about which the torque is being measured to the point where the force is applied

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So:

\begin{gathered} r\cdot F=(-0.26\times314+290\times0.32)=92.8-81.64=11.16 \\ I=0.930 \\ so,_{\text{ }}solve_{\text{ }}for_{\text{ }}\alpha: \\ \alpha=\frac{r\cdot F}{I} \\ \alpha=\frac{11.16}{0.930} \\ \alpha=\frac{12rad}{s^2} \end{gathered}

Answer:

12 rad/s²

8 0
1 year ago
what is the acceleration of an object that moves at a constant velocity of 2.0 meters per second for 5 seconds?
nexus9112 [7]
Constant velocity means moving in a straight line at a speed that doesn't change. If the object is moving with constant velocity then its acceleration is zero. Acceleration is the rate at which velocity is changing.
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