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100
Ball A is thrown in a horizontal direction from a certain height. Ball B is dropped at the same time from the same height. Which ball will hit the ground first?
Balls A and B will hit the ground at the same time
100
An object is thrown horizontally off a cliff with an initial velocity of 5 meters per second. The object strikes the ground 3 seconds later. What is the horizontal speed of the object 1 second after it is released?
5 m/s
100
A baseball player throws a ball horizontally. TRUE or FALSE the vertical speed of the ball increases, and its horizontal speed remains the same.
TRUE
200
A golf ball is hit an an angle of 45 degrees above the horizontal. What is the acceleration of the golf ball at the highest point in its trajectory?
9.8 m/s2 downward
200
A book is pushed with an initial horizontal velocity of 5 meters per second off the top of a desk. What is the initial vertical velocity of the book?
0 m/s
200
Two spheres, A and B, are simultaneously projected horizontally from the top of a tower. Sphere A has a horizontal speed of 40 m/s and sphere B has a horizontal speed of 20 m/s. TRUE or FALSE both sphere will hit the ground at the same time and at the same distance from the base of the tower.
FALSE. Both spheres will hit the ground at the same time, but sphere A lands twice as far as sphere B from the base of the tower.
300
The path of a projectile fired at a 30 degree angle to the horizontal can be described as
Parabolic
300
A ball is thrown at an angle of 38 degrees to the horizontal. What happens to the magnitude of the ball's vertical acceleration during the total time interval that the ball is in the air?
It remains the same.
300
Two stones, A and B, are thrown horizontally from the top of a cliff. Stone A has an initial speed of 15 m/s and stone B has initial speed of 30 m/s. Compared to the time it takes stone A to reach the ground, the time it takes stone B to reach the ground is?
The same.
400
Projectile A is launched horizontally at a speed of 20 meters per second from the top of a cliff and strikes a level surface below, 3 seconds later. Projectile B is launched horizontally from the same location at a speed of 30 meters per second. The time it takes projectile B to reach the level surface is
3 seconds
400
A red ball and a green ball are simultaneously thrown horizontally from the same height. The red ball has an initial speed o 40 meters per second and the green ball has an initial speed of 20 meters per second. Compared to the time it takes the red ball to reach the ground, the time it takes the green ball to reach the ground will be?
The same
400
What happens to an object's acceleration as it travels in a projectile motion?
It remains the same.
500
A cannon fires a projectile at an angle with the horizontal. The horizontal component of the projectile's initial velocity is 866 meters per second and its initial vertical component is 500 meters per second. What is the shape of the path the the projectile will follow?
Parabolic
500
A golf ball is given an initial speed of 20 meters per second and returns to level ground. Which launch angle above level ground results in the ball traveling the greatest horizontal distance?
45 degress
500
What will happen to the horizontal distance a ball will travel if the angle is decreased from 30 degrees to 20 degrees?
It will decrease