1. Over which interval is the velocity greatest?
FILL IN THE BLANK ____
2. Over which interval(s) is the velocity zero?
FILL IN THE BLANK ____
4. What is the average velocity in m/s from A to B?
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5. The velocity of an object goes from 4 m/s to 12 m/s in 4s. What is its acceleration?
For number 6 I need help describing what momentum is and how it differs from intertia.
For the rest of the problems:
1: CD
2: A
4: Not sure, either CD, or B
5: No idea.
4. Not sure either as there is no diagram.
5. a = (vf - vi) /t
Inertia is essentially mass. Momentum is mass times velocity.
Blank between dust particles makes the planets go around the sun
To answer these physics questions, let's break down each one and explain how to get the answers:
1. To determine over which interval the velocity is greatest, you need a velocity-time graph or a function that represents the velocity. Locate the interval where the velocity reaches its highest value. Without further information, it is not possible to fill in the blank.
2. To identify the interval(s) where the velocity is zero, either a velocity-time graph or a function that represents the velocity is needed. Look for the parts of the graph or function where the velocity is consistently zero. Without further information, it is not possible to fill in the blank.
4. To find the average velocity from point A to point B, you need the position-time graph or function. Calculate the displacement (change in position) between point A and point B. Then, divide it by the time it took to travel from A to B. Without additional information about the graph or function, it is not possible to fill in the blank.
5. Acceleration is the rate of change of velocity. In this case, the initial velocity is 4 m/s, the final velocity is 12 m/s, and the time taken is 4 seconds. The formula for acceleration is (final velocity - initial velocity) divided by time. Plug in the given values into the formula: (12 m/s - 4 m/s) / 4 s = 8 m/s^2. Therefore, the acceleration is 8 m/s^2.
Now, let's move on to clarifying momentum and its difference from inertia.
6. Momentum is the product of an object's mass and its velocity. It is a vector quantity, meaning it has both magnitude and direction. Mathematically, momentum (p) is calculated as p = m * v, where m is the mass of the object and v is its velocity. Momentum is conserved in a closed system, meaning that the total momentum before an event is equal to the total momentum after the event.
Inertia, on the other hand, is an object's resistance to changes in its motion. It is a property of matter and depends on the object's mass. Inertia is closely related to momentum, but they are not the same concept. While momentum refers to the quantity of motion an object has, inertia focuses on an object's tendency to remain at rest or in motion unless acted upon by an external force.
To summarize, momentum is the product of an object's mass and velocity, while inertia is an object's resistance to changes in its motion.