The range of a cannot ball fired horizontally from a laboratory table is equal to 8/3 Times the height of a table What is the direction of velocity of the projectile as it strikes the ground?
If the height is h, then the time it takes to fall is
4.9t^2 = h
In that time, it travels 8/3 h, so its horizontal velicity is
(8/3 h)/t = 8h/3 √(4.9/h) = 8/3 √(4.9h)
Its vertical velocity is -9.8t = -9.8 √(h/4.9)
now finish it off
student
To determine the direction of velocity of the projectile as it strikes the ground, we need to consider that the projectile is fired horizontally from a laboratory table.
When a projectile is fired horizontally, its initial vertical velocity is 0. The only force acting on the projectile is gravity, which causes it to accelerate vertically downwards.
Since the initial vertical velocity is 0, the only component of velocity affecting the projectile's motion is its horizontal velocity. The horizontal velocity remains constant throughout the projectile's flight.
Therefore, the direction of velocity of the projectile as it strikes the ground will be purely horizontal, parallel to the laboratory table.
To determine the direction of the velocity of the projectile as it strikes the ground, we need to consider the motion of a horizontally fired ball and how it moves in relation to the ground.
When a ball is fired horizontally, it means that it is launched with an initial horizontal velocity (Vx) and zero vertical velocity (Vy). In this case, we can assume that there is no air resistance acting on the ball.
Gravity acts vertically downward, causing the ball to accelerate downward (in the negative y-direction). However, since there is no initial vertical velocity, the ball will fall vertically at a constant rate.
The horizontal motion of the ball remains unaffected by gravity since there is no force acting horizontally. As a result, the horizontal velocity of the ball remains constant throughout its flight.
Therefore, the direction of the velocity of the projectile as it strikes the ground is horizontal.