since velocity starts decreasing from h
since a = dv/dt
acceleration will be negative when velocity is decreasing
so it will be negative at point i and k from the given options
h gr f j b k a Time t Select the point(s) on graph from options that has negative acceleration (Select all that app...
Select ALL of the lines on the graphs (shown above) which could represent a velocity vs time graph of motion with constant acceleration. A B C D E F G H I J K L time time time
Select ALL of the pairs of lines which meet both of the following criteria: The lines on the graph could describe velocity vs time with constant, non-zero acceleration One line on the graph has twice the initial velocity of the other line on the samegraph A/B C/D E/F G/H I/J J/K time time time
3 Select the THREE responses that are correct. If an object's position versus time graph is a straight line with a positive slope, then that object is moving with a constant velocity. moving with zero acceleration. moving upward. moving with a constant speed. moving with a constant, non-zero acceleration.4 An object can reverse its direction of travel when it has a constant acceleration. True False 5 Let us take up to the positive direction. If you throw a small rock straight up and catch it when it returns to you, its velocity vs....
.(10 pts) A car has the position vs time graph below. Consider points H, I, J, K, and L only. positive is to the right. (5 pts) At which point(s) is the car travelling to the left? (5 pts) At which point is the car's speed the greatest? a. b. H I J K Time
h(t) be the radius of the circle at time t. (1 point) Let A- f(r) be the area of a circle with radius r and r Which of the following statements correctly provides a practical interpretation of the composite function f(h(t) ? Select all that apply if more than one is appropriate. | ■ A. The area of the circle which at time t has radius h(t) B. At what time t the area will be A-f(r). C. The area...
Select ALL of the lines on the graphs (shown above) which could represent a position vs time graph of motion with non-zero acceleration. A B C D E F G H I J K L time time time
Shown below are various position-time, velocity-time and acceleration-time graphs. All of the graphs have numbered points on them. For these questions include only those points where the sign of the quantity definitely has the value specified. Include all points that apply in each case, if there are none specify none. Shown below are various position--time, velocity--time and acceleration--time graphs. All of the graphs have numbered points on them. Answer the questions below about the numbered points. For these questions include...
An object's motion is represented by the x vs. t graph shown below Hint: Velocity is the slope of x vs. t graph, and acceleration is slope of v vs. t graph. 130 points: 5 points each r (s) t (a) a. Draw the corresponding v vs. t graph on the axes provided. b. Draw the corresponding a vs. t graph on the axes provided. c. At what times is the position a maximum (most positive)? At those times, is...
Select ALL of the pairs of lines which meet both of the following criteria: The lines on the graph could describe position vs time with non-zero velocity One line on the graph has a greater velocity than the other line on the same graph A/B C/D E/F G/H I/J K/L time time time
At time t in minutes, an object's distance from a point is given by s(t) - 2+5 inches. Use this information to answer the questions below. (a) Find the average velocity of the object between t - 1 and t - 3 minutes. Give an exact answer. Average velocity - --Select v (6) Which of the following represents the mathematical definition of s'(3)? s(3) - lim (213+ + 5) - (e2+ + 5) os(3) - lim (M+ 5 + )...