Does a bicycle moving at constant speed on a straight level road have acceleration so will it have force?
Solution of Hint a) – the road exert a force The net force acting on the cyclist together with the bicycle during uniform rectilinear motion has to equal zero because the acceleration is zero.
Which of the two principles conservation of momentum and conservation of mechanical energy must be applied to determine the final speed of the carts and why?
Which of the two princples, conservation of momentum and conservation of mechanical energy, must be applied to determine the final speed of the carts, and why? Only conservation of momentum, because the momentum lost by one cart is gained by the other and there is only one unknown quantity.
What is a bicycle moving on a straight road at constant speed?
It has a circular motion around its axis. Translatory motion as every point of the wheels exhibits the same motion. After each cycle, the motion repeats and forms periodic nature. ⇒ Wheels of bicycle exhibit all circular, translator, and periodic motion.
When a bicycle is moving with constant velocity in a straight line is the force 1 acting balanced or unbalanced?
The resultant force acting on the bicycle is zero as the bicycle is moving with a constant velocity.
What are the 2 principles of conservation of energy?
The law of conservation of energy states that the total energy of an isolated system remains constant, it is said to be conserved over time. This law means that energy can neither be created nor destroyed; rather, it can only be transformed or transferred from one form to another.
What is the 2 law of conservation of energy?
The law of conservation of energy states that energy can neither be created nor destroyed – only converted from one form of energy to another. This means that a system always has the same amount of energy, unless it’s added from the outside.
What is the principle of conservation of momentum in mechanics?
Momentum Conservation Principle For two or more bodies in an isolated system acting upon each other, their total momentum remains constant unless an external force is applied. Therefore, momentum can neither be created nor destroyed.
Is acceleration equal to speed?
Acceleration is the name we give to any process where the velocity changes. Since velocity is a speed and a direction, there are only two ways for you to accelerate: change your speed or change your direction—or change both.
What tells how velocity changes?
Acceleration has both a magnitude and a direction and so it is a vector quantity. The algebraic sign of its component ax represents the direction of velocity change along the chosen vx axis. When acceleration and velocity are in the same direction (have the same sign) the object will speed up.
When a cycle is moving in a straight line the motion of the wheel is?
The wheel of a moving bicycle follows circular as well as rectilinear motion whereas the blade of a moving electric fan shows only circular motion. Hence, the mark on the fan will possess circular motion, whereas the motion of the wheel undergoes both rectilinear and circular motion.
Can something accelerate if it always has a constant speed?
Can an object accelerate if it’s moving with constant speed? Yup! Many people find this counter-intuitive at first because they forget that changes in the direction of motion of an object—even if the object is maintaining a constant speed—still count as acceleration.
Is an object accelerating if it moves at a constant speed in a circle?
For this reason, it can be safely concluded that an object moving in a circle at constant speed is indeed accelerating. It is accelerating because the direction of the velocity vector is changing.
Can a body moving with constant speed have acceleration?
If a body is moving with constant speed in a circle, then yes, that body has acceleration. However, if the body is moving with constant speed in a straight line, then no, that body has no acceleration. This is because acceleration measures the change in velocity, and velocity is speed with a direction.
Is it possible to be accelerating if you are Travelling at a constant speed?
Yes, it is possible to have an accelerated motion with constant speed. Let’s take an example of a particle moving in a uniform circular motion, it has acceleration because the direction of the motion is changing but it has a constant speed along tangential throughout the motion.