An unbalanced force.
Newton's first law states that an object in motion will stay in motion until a unbalanced force acts upon it.
Answer:
-1m
Explanation:
I'm assuming it means that you treat the distance travelled as a displacement vector (distance of a particular direction and magnitude)
If he turns 180 degrees, he is travelling in the exact opposite direction to his original direction of travel. Therefore if he was travelling 5m in one direction, then afer his turn he travels 6m in the exact opposite direction. Opposite directions can be interpreted as the negative of the original direction.
Resultant vectors are the sum of vectors.
The sum of vectors is equal to 5m + - 6m = -1m
Answer:
A magnetic tape is being played on a cassette deck. The tension in the tape applies a torque to supply reel. Assuming the tension remains constant during playback, the torque varies as the reel becomes empty because the lever arm gets smaller. Therefore, the torque exerted on the reel by the tape becomes smaller.
Explanation:
Inertia increases and the angular momentum is to remain the constant.
Torque =rFsinФ
r=radius
F=force
Ф=angle between the F and lever arm
Answer:
Four fundamental forces are gravitational, electromagnetic, strong, and weak.
Explanation:
The gravitational and electromagnetic interactions, which produce significant long-range forces whose effects can be seen directly in everyday life and the strong and weak interactions, which produce forces at minuscule, subatomic distances and govern nuclear interactions.
