Table of Contents
When an object moves along a straight line its?
When an object moves along a straight line its motion is called motion.
What is the acceleration of an object moving up?
When an object is speeding up, the acceleration is in the same direction as the velocity. Thus, this object has a positive acceleration. In Example B, the object is moving in the negative direction (i.e., has a negative velocity) and is slowing down.
Which of the following statement is incorrect for an object moving along a straight path in an accelerated motion?
It is option C- It always goes away from the earth. An object that is moving along a straight path in an accelerated motion can change its speed, and also its velocity, as it is in a straight line. But, it cannot go away from the earth.
When a body moves along a straight line path then the body has which acceleration?
constant acceleration
A body with constant acceleration always moves along a straight line.
When an object moves along a straight line Ita average speed is equal to?
The total displacement covered divided by time taken is equal to average velocity of the object. Displacement is the shortest path covered while the overall path covered is distance. When an object moves in a straight line in one direction, then the magnitude of average velocity of an object equal to its average speed.
What is the acceleration of a rock thrown straight upward on the way up at the top of its flight on the way down?
What is the acceleration of a rock thrown straight upward on the way up? At the top of its flight? On the way down? The acceleration of the rock thrown upward has the same value of – 9.8 m/s^2 downwards at all three points of the rock on way up, stationary at the top of its flight and on way down.
Which of the following statement is not correct for an object moving along a straight line?
Also, speed is equal to the magnitude of velocity for a particle moving along a straight line. Hence, its speed is also always changing. A body under acceleration on a straight line may be moving towards or away from earth. Hence, option c is wrong.
Which of the following statement is not correct for an object moving along a straight path in?
To move away from the earth, the object’s acceleration should be more than the acceleration due to gravity. To escape from gravity only moving along a straight path is not enough hence option (c) is a wrong statement.
What is the speed of an object with acceleration 2m/s?
If it was initially moving along the same line at a velocity at or near the speed of light, then the acceleration of 2m/s/s will have little or no effect. Now, if the object was initially at rest, then its speed (after 2 seconds of acceleration at 2m/s/s) will be 4m/s.
How do you find the acceleration of a moving object?
Movement can be shown in distance-time and velocity-time graphs. You can calculate the acceleration of an object from its change in velocity and the time taken. Velocity is not exactly the same as speed. Velocity has a direction as well as a speed. For example, 15 m/s is a speed, but 15 m/s North is a velocity (North is the direction).
What is the difference between velocity and acceleration in physics?
Velocity is speed in a given direction. Acceleration is change in velocity divided by time. Movement can be shown in distance-time and velocity-time graphs. You can calculate the acceleration of an object from its change in velocity and the time taken. Velocity is not exactly the same as speed.
What units do you need to calculate acceleration in physics?
You need to know 3 of the 4: acceleration, initial speed, final speed and time (acceleration duration) to calculate the fourth. The output is always in the input unit squared (e.g. km/h 2 ), meters per second squared (m/s 2) and standard gravity units ( gn, often just g ).