(a) Define uniform acceleration.

(b) Forces act on a car in motion. List the

(i) horizontal forces and their directions;

(ii) vertical forces and their directions

(c) A car starts from rest and accelerates uniformly for 20s to attain a speed of 25 ms\(^{-1}\). It maintains this speed for 30s before decelerating uniformly to rest. The total time for the journey is 60 seconds.

(i) Sketch a velocity-time graph for the motion.

(ii) Use the graph to determine the (\(\alpha\)) total distance travelled by the car (\(\beta\)) deceleration of the car.

The figure above illustrates a force-extension graph for a stretched spiral spring. Determine the work done on the spring.  SEE THE DIAGRAM ABOVE

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Discussions (11)

Mopson
1 year ago

I can't view the pictures of diagrammatic solution.pls can someone help

Goodsuccess2024
2 years ago

yeah pls someone help us out with this issue

Azoyenime
2 years ago

Please, 🙏, I don't know why none of the pictures offered for diagrammatic solution, in form of illustrations, of questions are not showing. Can someone help me out 😭🥹???

bepo
2 years ago

i can't see the picture in the solution 😭😭

bepo
2 years ago

If an object's speed (velocity) is increasing at a constant rate then we say it has uniform acceleration.

Jimohifeoluwa
4 years ago

if two forces of magnitude 2N and 3N acting at a point O are inclined at an angle of 60° to each other, find the magnitude and direction of the resultant force.?

chloecleo
1 year ago

@Myschool, please the pictures of the diagram is not shown
pls fix it

ogenemariefe
1 month ago

To find the slope of a part of a graph is it not the same as the area of that part?
Like for the deceleration, can't we use area of triangle to solve for it?

chloecleo
1 year ago

No diagram is shown , even though I have updated the app like 3 times.

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