Projectile Motion & Rectilinear Motion

What is projectile motion?

• Projectile motion is the motion of an object floating in water

• Projectile motion is the motion of an object moving in a straight line

• Projectile motion is the motion of an object thrown or projected into the air, subject to only the force of gravity.

• Projectile motion is the motion of an object propelled by a rocket engine

How is the range of projectile motion calculated?

• R = (v * sin(θ)) / g

• R = (v^2 * sin(θ)) / g

• R = (v^2 * sin(2θ)) / g

• R = (v^2 * cos(2θ)) / g

What is the maximum height of a projectile?

• The maximum height of a projectile is (v^2 * cos^2(θ)) / (2 * g)

• The maximum height of a projectile is (v^2 * sin^2(θ)) / (2 * g)

• The maximum height of a projectile is (v^2 * sec^2(θ)) / (2 * g)

• The maximum height of a projectile is (v^2 * tan^2(θ)) / (2 * g)

Define uniform rectilinear motion.

• Motion in a circular path with varying speed

• Uniform rectilinear motion is the motion of an object in a straight line with constant speed.

• Motion in a zigzag pattern with constant speed

• Motion in a straight line with varying speed

What is the equation for acceleration in rectilinear motion?

• a = v * t

• a = (v + u) / t

• a = u / t

• The equation for acceleration in rectilinear motion is a = (v - u) / t, where a is acceleration, v is final velocity, u is initial velocity, and t is time.

How is the range of projectile motion affected by the initial velocity?

• The range of projectile motion increases linearly with the initial velocity

• The range of projectile motion is inversely proportional to the initial velocity

• The range of projectile motion is not affected by the initial velocity

• The range of projectile motion is directly proportional to the square of the initial velocity.

What is the difference between projectile motion and rectilinear motion?

• Projectile motion involves motion in one dimension, while rectilinear motion involves motion in two dimensions.

• Projectile motion involves motion at a constant speed, while rectilinear motion involves motion at varying speeds.

• Projectile motion involves a curved path under the influence of gravity, while rectilinear motion involves a straight line with constant velocity.

• Projectile motion involves a straight line with constant velocity, while rectilinear motion involves a curved path under the influence of gravity.

How is the acceleration calculated in rectilinear motion?

• Acceleration = (Initial velocity) / (Time taken)

• Acceleration = (Distance traveled) / (Time taken)

• Acceleration = (Force) / (Mass)

• Acceleration = (Change in velocity) / (Time taken)

A soccer ball is kicked horizontally off a 22.0-meter high hill and lands a distance of 35.0 meters from the edge of the hill. Determine the initial horizontal velocity of the soccer ball.

• 16.50 m/s

• 17.00 m/s

• 17.50 m/s

• 18.00 m/s

Suppose a golfer hits a ball with a velocity of 45 m s–1 at an angle of 20° to

the horizontal. Where will the ball be 2 seconds later?

• 86.47, 13.18

• 84.57, 11.18

• 85.47, 12.18

• 87.47, 14.18