Understanding Motion in Two Dimensions

Practice Questions

High School Physics › Understanding Motion in Two Dimensions

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A man stands on a tall ladder of height . He leans over a little too far and falls off the ladder. What would be the best way to describe his fall?

Sam throws a rock off the edge of a tall building at an angle of $35^{\circ}$ from the horizontal. The rock has an initial speed of $30\frac{m}{s}$ .

$\small g=-9.8\frac{m}{s^2}$

At what height above the ground will the rock change direction?

A projectile is fired at $30^{\circ}$ above the horizontal at an initial speed of $200\frac{m}{s}$ . How long is it in the air?

Laurence throws a rock off the edge of a tall building at an angle of $20^{\circ}$ from the horizontal with an initial speed of $31\frac{m}{s}$ .

$g=-9.8\frac{m}{s^2}$ .

How long is the rock in the air?

Laurence throws a rock off the edge of a tall building at an angle of $20^{\circ}$ from the horizontal with an initial speed of $31\frac{m}{s}$ .

$g=-9.8\frac{m}{s^2}$ .

What is the initial vertical velocity?

A ball rolls off of a table with an initial horizontal velocity of $19\frac{m}{s}$ . If the table is high, how long will it take to hit the ground?

$\small g=-9.8\frac{m}{s^2}$

Laurence throws a rock off the edge of a tall building at an angle of $20^{\circ}$ from the horizontal with an initial speed of $31\frac{m}{s}$ .

$g=-9.8\frac{m}{s^2}$ .

What is the initial horizontal velocity?

A ball rolls off of a table with an initial horizontal velocity of $19\frac{m}{s}$ . If the table is high, how far from the table will it land?

$\small g=-9.8\frac{m}{s^2}$

An athlete kicks a ball into the air. It travels $\small 42m$ and is in the air for $\small 4.5s$ . One stadium has a large scoreboard in the center of the field that reaches above the ground. With what minimum total velocity must the athlete kick the ball in order to get it over the scoreboard?

A projectile is fired at $30^{\circ}$ above the horizontal at an initial speed of $200\frac{m}{s}$ . If the projectile is in the air for 20s, what is the range of the projectile?

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