i have 2 questions plzz help me by explainig it in easy way , plzzz help?

Question

Question 1: Will the acceleration of a car be the same when the car travels around a sharp curve at the same speed? Explian.
Question 2: Why do bicycle riders lean inward when rounding a curve at high speed?
plzz help me by explian it in easy way. thaks

Answer 1

1) If it's travelling at the same speed, it is not accelerating at all. Impossible. Is that what the question said?

2) The lean inward to aid in steering.

Answer 2

1. No

Speed is just how fast you are going. Velocity is how fast your are going in a specified direction. To change your velocity, you must accelerate. That means to speed up or slow, you accelerate (positive acceleration you'd call speeding up, negative acceleration you'd call slowing down). But to change direction, you must apply an acceleration in the new direction! The speed may not change, but your direction does.

2. It follows from (1). As the bicycle changes direction, it is accelerating in that direction even if its speed doesn't change. Since everything has inertia, the bike and rider want to keep going in the same direction. So if the rider simply turned the wheel left, the front tire would accelerate to the left while the rest of the bike (and rider) go straight. Of course, the wheels would move out from under the rider, and they'd fall over.

You know if you are on a bike not moving, and you lean to the left, you'll fall over, because gravity pulls you down. When you are moving fast, however, you lean just enough so that the gravity pulling you over exactly matches your acceleration to the left. You maintain balance!

Answer 3

Both of your questions relate to circular motion and centripetal and centrifugal force. Look these up. It will be a big help to your question.

However, any change in direction, such as turning a corner requires a change in velocity (velocity is a vector, it has a direction). Imagine a ball travelling towards your tennis racket at 10m/s. To make it change direction you have to hit it. Apply a force.. Even if the ball is travelling back away from you at 10m/s.


So it is when going around a corner at the same speed. The direction is changing and so the object is accelerating.


Please search on these key points
Circular motion
Centrifugal Force
Centripetal Force.
Circular motion is a special kind of motion much of the above answers are wrong regarding the accelearation of the car at constant speed. IT IS ACCELERATING. Don't take my word for it hough go learn for yourself.

Answer 4

An object in motion tends to stay in motion. The car going either straight or around a corner at the same speed will obviously have the same acceleration, but it's weight distribution will change; that's also why bikers lean into the turn. They want their direction to change, so they compensate by shifting their weight to one side to take the turn easier... if they didn't they and their bikes would probably tip over because... an object in motion tends to stay in motion, so they'd keep going straight while turning.

Answer 5

1. Same speed so no acceleration.
2. Bicycles are designed to lean inward when turning to maintain the center of gravity by cancelling centrifugal force.

Answer 6

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