GK
PHYSICS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Horizontal velocity changes in the whole travel
|
|
|
The object is affected by its mass
|
|
|
The shape of the path is circular
|
|
|
Vertical velocity changes constantly per time due to gravity
|
Detailed explanation-1: -The horizontal velocity of a projectile is constant (a never changing in value), There is a vertical acceleration caused by gravity; its value is 9.8 m/s/s, down, The vertical velocity of a projectile changes by 9.8 m/s each second, The horizontal motion of a projectile is independent of its vertical motion.
Detailed explanation-2: -The vertical motion of a projectile is controlled by the force of gravity. This means that there is an unbalanced force acting on the ball and so the ball will accelerate downwards. This acceleration is 9 ⋅ 8 m s − 2 (the gravitational field strength on Earth).
Detailed explanation-3: -The vertical velocity of a projectile is 0 m/s at the peak of its trajectory. motion are independent of each other. 10. The final vertical velocity of a projectile is always equal to the initial vertical velocity.
Detailed explanation-4: -There is always an effect of gravity on vertical motion. The acceleration due to gravity affects the vertical component of projectile motion. The vertical velocity of the object changes by 9.8 m/s.
Detailed explanation-5: -Whereas in vertical direction object is under the effect of constant acceleration that is gravitational acceleration g, therefore object moves with a continuously changing vertical velocity .