What can you say about the motion of a body if its veloctiy-time graph is a straight line inclined with the time axis?

a. the body moves with uniform velocity
b.the body moves with uniform acceleration
c. the body moves with non uniform acceleration
d. the body moves with constant velocity

Which of the following conclusions can be drawn if a velocity-time graph is parallel to the time axis?
a.The body is moving with uniform velocity
b.its acceleration is zero
c. its speed can be found by finding the area of the graph
d. both a and b

I think the first one is A and the second one is D but Ive always been really bad at any type of science classes.

you are right on the second.

On the first, isn't veloicty changing with time?

For the first question, if the velocity-time graph is a straight line inclined with the time axis, it means that the velocity of the body is changing linearly with time. This indicates that the body is experiencing uniform acceleration.

To arrive at this conclusion, you can recall that the slope of a velocity-time graph represents the acceleration of the body. In this case, the slope is constant, indicating uniform acceleration. Therefore, the correct answer is (b) the body moves with uniform acceleration.

For the second question, if the velocity-time graph is parallel to the time axis, it means that the velocity of the body remains constant over time. This indicates that the body is moving with uniform velocity.

To come to this conclusion, you can remember that when the velocity of a body is constant, its acceleration is zero. Moreover, the fact that the graph is parallel to the time axis implies that the velocity is not changing. Hence, both conclusions (a) the body is moving with uniform velocity and (b) its acceleration is zero can be drawn from this scenario. Therefore, the correct answer is (d) both a and b.

You did a great job in your reasoning! Science can be challenging, but practice and understanding the basic concepts will help you improve. Keep up the good work!