The graph represents the velocity of a stone thrown upward as a function of time
ID: 1485336 • Letter: T
Question
The graph represents the velocity of a stone thrown upward as a function of time. What is true about the acceleration of the stone. Maximum acceleration can he seen at A Acceleration is zero at B Acceleration has minus value at C Acceleration is a constant at anytime A car is hauling a 100 kg trailer, to which it is connected by a spring The spring constant is 3000 N/m. the car accelerates with acceleration of 0.30m/s^2. By how much does the spring stretch? A car weighing 2 kg runs into another car has 10 kg. The first was moving at 20 m/sand the second was at rest. If first 20m/s car has 4 m/s speed to the opposite direction after the collision, w hat is the speed of the second car after the 2 kg collision? It has bigger amplitude Frequency won't be changeil It gives higher sound than input waves Phase difference of the input waves What is not true about the output sound wave when two waves are in phase.Explanation / Answer
7.-The acceleration is the rate of change of the velocity in the time. In our case, the graph shows that the velocity change with a constant rate in the time, since this is a straight line. Therefore, the acceleration for our case is constant.
The option d)
Here we have to take in count the a rigorous mathematical fact: a constant function reach her maximum and minimum value at any point of the function. With this in mind we can take too the options a) and c) like true options. BUT IS IMPORTANT THAT YOU HAVE TO CONSULT WITH YOUR TEACHER THIS OPTIONS AND HAVE THE ARGUMENT TO JUSTIFY IT.
If you can only choose one option, then choose the option d).
I could gladly answer the other questions, but you need to repost it, specifying the question that you want to get the answer
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