The net force is <u>zero</u><u>.</u>
According to Newton's first law, every body continues in its state of rest or in a state of uniform motion in a constant direction, unless acted upon by an external unbalanced force. This law leads to the principle that no force is required to keep the body moving with a constant velocity.
According to Newton's second law, force acting on a body is proportional to the rate of change of momentum produced in the body. In simple terms, the force <em>F</em> acting on a body is given by the product of its mass and the acceleration produced in it. Thus, when a force acts on a body, the body is accelerated.
A body is said to be accelerated, if its speed changes or its direction changes or if both its speed and its direction changes.
Since the car in the question is travelling at a constant speed of 60 mph, it is not accelerated, hence the total external force acting on the car is zero.
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Oh sorry I thought I knew this one I guess not but you can prob look it up on safari
If the Sun disappeared suddenly, we wouldn't know about it for about 8 minutes ... that's how long it takes for heat and light from the Sun to get here to Earth.
8 minutes after the Sun disappeared, the sky would turn totally black. All plants would immediately stop growing ... including all the plants that people or animals eat to live.
Then, after a few more minutes, we would start to notice that it was beginning to slowly get cooler, and that would continue until Earth was too cold for anything to live on it.
what type of question is that man ?
The answer is the ear drum. Hope that helps!