# Physics 1: Kinematics

A car accelerates at 3 m/s$^2$ from rest for 10 s. How far does it travel?

A car is moving at 100 km/h. It stops in 5.0 s. What is the car's acceleration?

A ball is thrown off a building. If the ball is thrown up at 5 m/s and lands 3 seconds later

Find the height of the building

Find the impact velocity of the ball

An object is projected straight upward from the ground level with a velocity of 50 m/s. Ignoring air resistance, it will return to the ground in approximately how many seconds?

A projectile is launched off a click at an angle. The cliff is 15m high, the projectile is launched at 25 degrees above horizontal. How much time is the projectile in the air before hitting the ground?

A swimmer is capable of swimming 0.60 ni/s in still water. (a) If she aims her body directly across a 55-m-wide river whose current is 0.50 m/s, how far downstream (from a point opposite her starting point) will she land? (b) How long will it take her to reach the other side?

A river is 300 m wide and the water flows downstream, exactly south, at 4 m/s. If a swimmer, moving at exactly 6 m/s, attempts to swim across the river:

At what direction should the swimmer orient himself to swim straight across the river in the east direction?

How long will it take the swimmer to across the river?

On a good dry road, a car with good tires may be able to brake with a constant deceleration of 4.92 m/s$^2$ . How long does such a car initially traveling at 24.6 m/s take to stop? How far does it travel this time?

A bullet was shot perfectly horizontally and was aimed directly at the center of a bulls eye 50 meters away. Suppose it struck 5 cm below the target. How fast was it going when it is fired?

A plastic ball is thrown with a velocity of 18 m/s stays in the air for 3.0 s.

At what angle with respect to the horizontal was it released?

What was the maximum height achieved by the ball?