Blake and Drew are playing horseshoes. Blake takes the first turn, and his horseshoe lands three-fourths of the way to the target. Drew takes the next turn, and his horseshoe lands past the target. Which statement best explains the results? (1 point)
• Drew used a horseshoe with more mass and threw with less force than Blake.
• Drew used a horseshoe with more mass and threw with the same force as Blake.
• The horseshoes have the same mass, but Drew threw with more force than Blake.
• The horseshoes have the same mass, but Drew threw with less force than Blake.
The horseshoes have the same mass, but Drew threw with more force than Blake.
The statement that best explains the results is: "The horseshoes have the same mass, but Drew threw with more force than Blake."
The best way to determine the answer to this question is to analyze the given information. According to the information provided, Blake's horseshoe landed three-fourths of the way to the target. Drew, on the other hand, landed his horseshoe past the target.
From this information, we can infer that Blake's horseshoe did not reach the target, while Drew's horseshoe went beyond the target. since the aim in horseshoes is to throw the horseshoe as close to the target as possible, it is reasonable to conclude that Blake's throw was closer to the target than Drew's throw.
Therefore, we can eliminate options that imply that Drew was more successful than Blake. This means option 2 and option 3 can be eliminated.
Out of the remaining options, we need to consider the force and mass of the horseshoes. Both options suggest that the horseshoes have the same mass. However, to determine which option is correct, we need to identify which throw had more force.
Unfortunately, the given information does not provide any details about the force with which Blake and Drew threw their horseshoes. Since there is no information to suggest that either player used more or less force than the other, we cannot determine the answer solely based on the given information.
In conclusion, the given information does not provide enough evidence to determine which statement best explains the results.
Four movers pick up boxes. Each box has a different mass, and each mover applies a different amount of force to lift the box. Which box will have the greatest acceleration? (1 point)
RSE TOOLS
• a 20 kg box lifted with 60 N of force
• a 10 kg box lifted with 60 N of force
• a 20 kg box lifted with 40 N of force
• a 10 kg box lifted with 40 N of force
To determine which box will have the greatest acceleration, we can use Newton's Second Law of Motion, which states that the acceleration of an object is directly proportional to the net force applied to it and inversely proportional to its mass.
To calculate acceleration, we can use the formula:
acceleration = force / mass
Comparing the options:
1) a 20 kg box lifted with 60 N of force
acceleration = 60 N / 20 kg = 3 m/s²
2) a 10 kg box lifted with 60 N of force
acceleration = 60 N / 10 kg = 6 m/s²
3) a 20 kg box lifted with 40 N of force
acceleration = 40 N / 20 kg = 2 m/s²
4) a 10 kg box lifted with 40 N of force
acceleration = 40 N / 10 kg = 4 m/s²
Based on the calculations, the box with the greatest acceleration is the "a 10 kg box lifted with 60 N of force" option, with an acceleration of 6 m/s².
A baseball has a mass of 145 g. A pitcher throws the baseball so that it accelerates at a rate of 80 m/s?. How much force did the pitcher apply to the baseball? (1 point)
• 65 N
• 11.6 N
• 1.8 N
• 0.6 N
To determine the force applied by the pitcher to the baseball, we can use Newton's Second Law of Motion, which states that force is equal to mass multiplied by acceleration.
Given:
Mass of the baseball = 145 g = 0.145 kg
Acceleration = 80 m/s²
Force = mass * acceleration
Force = 0.145 kg * 80 m/s²
Force = 11.6 N
Therefore, the pitcher applied a force of 11.6 N to the baseball. The correct answer is "• 11.6 N."
Which situation describes a negative acceleration? (1 point)
• a diver jumping off a diving board and falling to the swimming pool below
• a runner slowing down at the end of a race
• a swimmer moving at a constant velocity
• a bicycle increasing its velocity as the rider pedals harder
A negative acceleration refers to a situation where an object is slowing down or moving in the opposite direction of its initial motion.
Out of the given situations, the one that describes a negative acceleration is "a runner slowing down at the end of a race." In this scenario, the runner is decreasing their velocity and moving in the opposite direction of their initial motion, resulting in a negative acceleration.