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What are the differences between projectile motion and free fall?
Projectile motion involves an object moving both horizontally and vertically, while free fall is when an object falls only vertically due to gravity. In projectile motion, the object has an initial horizontal velocity, while in free fall, the object is only affected by gravity.
Is it true that an object that is propelled vertically normally moves at a constant pace?
No, an object propelled vertically will not normally move at a constant pace. Due to the influence of gravity, the object will experience acceleration while moving upward and deceleration while moving downward. This will result in a continuously changing velocity throughout its motion.
What happens to the velocity as the height increases?
As height increases, the velocity generally decreases due to the effect of gravity. This is because potential energy increases while kinetic energy decreases, resulting in a slower velocity.
A boy catches a ball while standing on roller skates What happens to the boy's velocity and the ball's velocity?
The ball's velocity changes to 0m/s and the boy's stays the same.
A projectile moves in a parabolic path without air resistance is there any point at which acceleration is parallel to velocity?
Yes, the acceleration is parallel to the velocity at the highest point of the projectile's path, known as the apex or vertex. At this point, the velocity is momentarily zero and changing in direction, while the acceleration due to gravity still acts vertically downward.
What are the differences between projectile motion and free fall?
Projectile motion involves an object moving both horizontally and vertically, while free fall is when an object falls only vertically due to gravity. In projectile motion, the object has an initial horizontal velocity, while in free fall, the object is only affected by gravity.
Is it true that an object that is propelled vertically normally moves at a constant pace?
No, an object propelled vertically will not normally move at a constant pace. Due to the influence of gravity, the object will experience acceleration while moving upward and deceleration while moving downward. This will result in a continuously changing velocity throughout its motion.
What happens to the velocity as the height increases?
As height increases, the velocity generally decreases due to the effect of gravity. This is because potential energy increases while kinetic energy decreases, resulting in a slower velocity.
A boy catches a ball while standing on roller skates What happens to the boy's velocity and the ball's velocity?
The ball's velocity changes to 0m/s and the boy's stays the same.
A projectile moves in a parabolic path without air resistance is there any point at which acceleration is parallel to velocity?
Yes, the acceleration is parallel to the velocity at the highest point of the projectile's path, known as the apex or vertex. At this point, the velocity is momentarily zero and changing in direction, while the acceleration due to gravity still acts vertically downward.
What happens to a car's velocity when you double its velocity?
Its value grows to become precisely equal to double its initial value, while its direction remains unchanged.
What happens to the momentum of an object traveling with a certain velocity if a load is added to it while in motion?
The momentum of an object traveling with a certain velocity will increase if a load is added to it while in motion. This is because momentum is directly proportional to both mass and velocity, so adding mass will result in an increase in momentum as long as the velocity remains constant.
When tossing a coin upwards what happens to its velocity while ascending what happens to its acceleration?
As the coin is tossed upwards, its velocity decreases until it reaches its highest point where it momentarily stops before coming back down. The acceleration due to gravity is acting against the coin's motion, causing it to decelerate while ascending.
What is the relationship between motion speed velocity and acceleration?
Velocity is a vector quantity that includes both speed and direction of motion. Speed is the magnitude of velocity, while acceleration is the rate of change of velocity over time. So, velocity tells us how fast an object is moving in a certain direction, while acceleration tells us how quickly its velocity is changing.
How are the horizontal velocity and the vertical velocity of thrown objects related?
The horizontal velocity of a thrown object is independent of its vertical velocity. This means that an object can be thrown horizontally with a certain speed, while also being affected by gravity vertically. The two motions are separate and do not directly influence each other.
Result of the combination of an objects forward inertia and the downward pull of gravity on the object?
If there is no forces acting, it will continue horizontally at constant velocity, while uniformly accelerating vertically down , the effect of this would trace a parabolic curve
What is the horizontal acceleration of a ball being rolled off of a cliff?
The horizontal acceleration of a ball rolling off a cliff is typically considered to be zero, assuming air resistance is neglected. The force of gravity acting vertically downward does not contribute to horizontal acceleration, as the ball falls vertically due to gravity while maintaining its initial horizontal velocity.
