Unit 4. 2-D Motion

Front

What is 2-D motion?

Back

2-D motion refers to the movement of an object in a two-dimensional plane, characterized by both horizontal and vertical components of motion.

Front

What is the formula for calculating the horizontal distance traveled by a projectile?

Back

The horizontal distance (range) can be calculated using the formula: Range = (horizontal speed) x (time of flight).

Front

What is the initial vertical velocity of an object that is pushed horizontally?

Back

The initial vertical velocity of an object pushed horizontally is 0 m/s.

Front

What happens to the vertical speed of a projectile after it is thrown horizontally?

Back

The vertical speed of a projectile increases due to the acceleration of gravity, while the horizontal speed remains constant.

Front

What is the acceleration of an object at the highest point of its trajectory?

Back

The acceleration of an object at the highest point of its trajectory is equal to the acceleration due to gravity (g), which is approximately 9.8 m/s².

Front

What is the significance of the angle of projection in projectile motion?

Back

The angle of projection affects the range, maximum height, and time of flight of the projectile.

Front

How do you calculate the time of flight for a projectile launched at an angle?

Back

Time of flight can be calculated using the formula: Time = (2 * initial vertical velocity) / g.

Front

What is the relationship between potential energy and height in projectile motion?

Back

Potential energy increases with height and is maximum at the highest point of the projectile's trajectory.

Front

What is the effect of air resistance on projectile motion?

Back

Air resistance opposes the motion of the projectile, reducing its range and altering its trajectory.

Front

What is the formula for calculating the maximum height of a projectile?

Back

Maximum height can be calculated using the formula: Height = (initial vertical velocity²) / (2 * g).