3.which is not a projectile?
a. a ball kicked in an angle
b. a lightning that struck a tree
c. a pebble dropped from a window
d. an arrow released from a bow

4. it is a curve line traced by a moving projectile becuase at the same time as it is moving horizontally, it is also moving vertically under the effect of gravity—
a. displacement
b. motion
c. trajectory
d. None

5.The Conventional value of the gravitational acceleration on earth—
a. 9.8m/s²
b. 8.9m/s
c.9.8m/s
d.8.9m/s²

6. which of the following is a projectile?
a. an object at rest that remains at rest
b. an object moving in constant motion
c. an object that is orbiting around the earth
d. an object that is thrown vertically upward that falls back​