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Is the total time of a ball thrown upwards is equal to the total time of a ball thrown in projectile provided that they have the same initial velocity?
Wiki User
∙ 13y ago
No.
However, the statement is true provided that the vertical component of the launch velocity for the two motions are the same.
You also require that both motions end at the same level and that the air resistance etc can be disregarded. The first of these may not always be valid in school exercises, the second is usually implicit.
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoyes, i am a scientist and i have tried this in class
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How do you draw velocity time graph for a body thrown vertically upwards?
To draw a velocity-time graph for a body thrown vertically upwards, the initial velocity will be positive (upwards) and steadily decrease due to gravity until reaching zero at the peak. After the peak, the velocity becomes negative as the body falls back down. The graph will have a symmetrical shape with the velocity decreasing and then increasing back to the initial velocity.
What is projectile velocity?
Projectile velocity refers to the speed at which a projectile, such as a bullet or a ball, travels through the air. It is typically measured in meters per second or feet per second. The velocity of a projectile is determined by various factors, including the initial speed at which it is launched and the forces acting upon it during flight.
Why does a projectile move upwards when thrown upwards even though a force of gravity acts downwards on it?
The initial force applied to the projectile when thrown upwards gives it momentum to move in that direction. However, gravity acts as a downward force, causing the projectile to eventually slow down and fall back down. The projectile continues to move upwards until gravity overcomes the initial force and brings it back to the ground.
Can the initial velocity be different if the final velocity is 0?
Yes, it is possible for the initial velocity to be different from zero when the final velocity is zero. For example, an object could be thrown upwards and come to a stop at its highest point, where the final velocity would be zero.
What angle for firing projectiles gives longest time?
45 degrees to the horizontal will give the maximum flight time for a projectile. If a projectile was fired at 90 degrees to the horizontal, (straight upwards) the projectile will go straight upwards (ignoring the shape, form and aerodynamic properties of the projectile). Likewise if you were to fire a projectile at 0 degrees to the horizontal, the projectile would follow said course, IF gravity was not in effect; a projectile needs some form of vertical velocity to overcome gravity. Hence why 45 degrees will give you the longest distance and consequently flight time.
What is the vertical acceleration of a projectile if the vertical component of its velocity vector is zero?
If the vertical component of the velocity vector is zero, it means that the projectile has reached the peak of its trajectory. At this point, the vertical acceleration of the projectile is equal to the acceleration due to gravity, which is typically -9.81 m/s^2 (assuming upwards is positive and downwards is negative).
In the absence of air friction does the horizontal component of a projectile's velocity change as the projectile moves is this True False?
False. In the absence of air friction, the horizontal component of a projectile's velocity remains constant throughout its motion. This is due to the fact that there are no external forces acting horizontally to cause a change in velocity.
How is gravity different for objects that freely fall down and those thrown upwards?
Gravity acts the same way on objects falling freely down and those thrown upwards. The difference lies in the initial velocity and direction of the objects. Objects thrown upwards have an initial velocity that opposes gravity, causing them to slow down and eventually fall back down due to gravity. Objects falling freely down have an initial velocity of zero and accelerate towards the ground due to gravity.
When object moves upwards what is the velocity and acceleration?
When an object moves upwards, its velocity is directed upwards if it is moving in the same direction as the motion. The acceleration, due to gravity, is directed downwards towards the center of the Earth. If the object is moving upwards against gravity, its acceleration is directed downwards but is a negative value.
An object is thrown vertically upwards from the top of a tower of height 39.2 meters reach the ground in 4 secons Find the velocity with which it is thrown upwards?
The velocity with which the object is thrown upwards can be found using the equation v = u + at, where v is the final velocity (0 m/s at the top), u is the initial velocity, a is the acceleration due to gravity (-9.81 m/s^2), and t is the time taken to reach the ground (4 seconds). Rearranging the equation to solve for u, we have u = v - at. Plugging in the values, u = 0 - (-9.81 * 4) = 39.24 m/s. Therefore, the object is thrown upwards with a velocity of 39.24 m/s.
Can you site an example in which the acceleration of a body is opposite in direction to its velocity?
When an object is thrown upwards, the acceleration due to gravity pulls it downwards, opposite in direction to its initial velocity. This causes the object to eventually come to a stop and reverse its direction as it falls back down.
What is the equations of motion for an object thrown vertically upwards?
The equation of motion for an object thrown vertically upwards is given by: [ v_f = v_i - gt ] [ h_f = h_i + v_i t - \frac{1}{2}gt^2 ] Where: ( v_f ) is the final velocity, ( v_i ) is the initial velocity, ( h_f ) is the final height, ( h_i ) is the initial height, ( g ) is the acceleration due to gravity, and ( t ) is the time elapsed.
