9. How much force is needed to accelerate a car whose mass is 500 kg from rest to a velocity of 60m/s in 60 sec? (10 points) a) 5N b) 50 N c) 500 N d) 500 ON

To find the force needed to accelerate the car, we can use the formula:<br /><br />Force = mass * acceleration<br /><br />First, we need to calculate the acceleration. We can use the formula:<br /><br />acceleration = (final velocity - initial velocity) / time<br /><br />Given:<br />mass = 500 kg<br />initial velocity = 0 m/s (since the car starts from rest)<br />final velocity = 60 m/s<br />time = 60 s<br /><br />Plugging in the values, we get:<br /><br />acceleration = (60 m/s - 0 m/s) / 60 s<br />acceleration = 60 m/s / 60 s<br />acceleration = 1 m/s²<br /><br />Now, we can calculate the force:<br /><br />Force = 500 kg * 1 m/s²<br />Force = 500 N<br /><br />Therefore, the correct answer is c) 500 N.