1.Suppose you weigh 986 N. How much force does the Earth exert on you, if any? i
ID: 1574695 • Letter: 1
Question
1.Suppose you weigh 986 N. How much force does the Earth exert on you, if any?
it cannot be determined
986 N
98.6N
none
2.
Suppose you have a car traveling down the road at constant speed and not changing direction. It is experiencing gravity, wind resistance and frictional forces from the road. What can be said about the car’s acceleration?
It is accelerating because there are forces acting on it.
It accelerating because the motor is running, propelling the car forward.
It is not accelerating because gravity holds it down.
It is not accelerating because it has constant velocity.
3.
Suppose you are driving north and suddenly hit your brakes to avoid a dog in the road. As you come to a stop your acceleration is directed
North
South
Nowhere because acceleration is a scalar
Downwards
Explanation / Answer
1) according to newtons thirds law of action reaction force
Option B that is 986N is correct
2) since the car is moving at a constant velocity., Hence the net acceleration should be zero
Option d is correct
3) since the car decelerates in the north hence the direction of acceleration of the car is in south direction.
Option B is correct
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