Why acceleration is zero at mean position in SHM?

Why acceleration is zero at mean position in SHM?

Acceleration is zero because at that point, it is the mean position, which means it is the equilibrium position. Hence, the spring is not compressed (or extended) or the pendulum suffers no tangential force. It is not that velocity is maximum, that’s why the acceleration is zero.

Is it possible that velocity is 0 but acceleration not?

A body may have zero velocity but non-zero acceleration. For example, when a body is thrown vertically upwards at the maximum height the body momentarily comes to rest.

At what time the velocity is zero?

Figure 3.8 The velocity is positive for the first part of the trip, zero when the object is stopped, and negative when the object reverses direction.

Can a moving object have 0 velocity?

Yes, an object can have zero velocity and still be accelerating simultaneously. Let us consider an object moving in the forward direction. Now, suddenly a force acts on it and tries to accelerate the object in the reversed direction.

Can a body have zero velocity and still acceleration give example?

Yes, a body with a velocity 0 can still accelerate. The simplest example is a body which is thrown up. At the peak point its velocity becomes 0 but still accelerates due to gravity.

Can a body have a velocity without acceleration give examples?

When an object is thrown upwards, then at the maximum height, velocity of body is zero at that instant but it has acceleration due to gravity. So, at the highest point for a body thrown upwards, velocity is zero and acceleration is equal to g (9.8 ms^-2) in downward direction.

Can a moving object have speed but no velocity and vice versa?

While the speed can remain the same. So in this way, the velocity can vary and the speed can be constant. But the vice versa is never possible.

Can speed change if velocity is constant?

Motion with Constant Velocity: When an object is moving with constant velocity, it does not change direction nor speed and therefore is represented as a straight line when graphed as distance over time.

Can a body have acceleration with constant velocity?

The velocity vector is constant in magnitude but changing in direction. Because the speed is constant for such a motion, many students have the misconception that there is no acceleration. For this reason, it can be safely concluded that an object moving in a circle at constant speed is indeed accelerating.

Can a body have I a uniform speed what still have acceleration and II zero velocity what still have acceleration give example of each?

(ii) Yes, a body can have acceleration even when its velocity is zero. When a body is thrown up, at highest point its velocity is zero but it has acceleration equal to acceleration due to gravity. A motorboat starting from rest on a lake accelerates in a straight line at a constant rate of 3.0 m s–2 for 8.0 s.

Does constant speed mean no velocity?

No, it doesn’t. Velocity is a vectorial quantity, it has magnitude (speed) and direction. Even though the speed is constant in this particular example, the direction changes all the time. The velocity of an object changes when the net force acting on it is not zero.

Can a body have acceleration without change in magnitude of velocity?

Can a body have acceleration without change in magnitude of velocity ? So yes, a body can have acceleration even if it has constant magnitude.In this case the direction of motion may change. Ex circular motion ,the direction continuously changes.It is accelerated motion even if the speed is constant.

Can a body have 0 acceleration?

According to newton’s first law of motion, the acceleration of the body could be zero if there is no force acting on it. For a uniformly moving object,the net force acting on the object is zero. Hence,the acceleration of the object is zero.

What is the initial velocity when a body is about to move?

The initial velocity of a body moving along a straight lines is 7m/s. It has a uniform acceleration of 4m/s2 the distance covered by the body in the 5th second of its motion is- Step by step solution by experts to help you in doubt clearance & scoring excellent marks in exams.