Review - AP Physics 1

1D Projectile Motion

Wed, 01 Apr 2026 10:36:23 -0000

A stone is thrown directly up from a building with an initial speed of 35.5 m/s.

How high above the building does the stone reach? When does it reach its max height?
If the building is 45.2 m high, when will the stone hit the ground?

- see the full problem at https://physguide.neocities.org#projectile

Relative Velocity

Wed, 01 Apr 2026 01:53:24 -0000

A swimmer appears to be going directly across a river at 1.5 m/s. The current is 2 m/s. At what velocity is he swimming? - see the full problem at https://physguide.neocities.org#relative

Atwood Machine

Wed, 01 Apr 2026 01:38:24 -0000

An Atwood Machine has masses of 100 kg and 50 kg. Find the acceleration. - see the full problem at https://physguide.neocities.org#atwood

Friction

Wed, 01 Apr 2026 01:23:24 -0000

When released from rest, a 2.0 kg block travels 2.0 m down a 35° ramp in 4 s. What is the coefficient of friction? - see the full problem at https://physguide.neocities.org#friction

Loops

Thu, 02 Apr 2026 10:36:28 -0000

A small mass slides along a vertical loop of radius r. In order to remain on the track, how fast must the mass be traveling at the top of the loop? - see the full problem at https://physguide.neocities.org#loops

Universal Gravitation and Kepler's 3rd Law

Wed, 01 Apr 2026 10:06:23 -0000

A NASA satellite orbits a comet with an orbital radius of 10.0 km. The comet has a radius of 2.5 km and a mass of 3.6 x 10¹⁴ kg. What is the period of the orbit? - see the full problem at https://physguide.neocities.org#gravitation

Work

Wed, 01 Apr 2026 09:51:23 -0000

You push a 25 kg crate up a 30° incline with a 300 N force, at a constant speed. It moves 3.0 m. How much work is done by...

you?
gravity?
friction?

- see the full problem at https://physguide.neocities.org#work

Conservation of Mechanical Energy

Wed, 01 Apr 2026 09:36:23 -0000

What is the final speed if v₀ = 0? - see the full problem at https://physguide.neocities.org#mechanical

Loops, part 2

Thu, 02 Apr 2026 10:21:28 -0000

A small mass is released from rest at the top of a frictionless track consisting of a ramp of height h and a loop of radius r. As found in part 1, the required velocity at the top of the loop is √gr m/s. How tall must the ramp be for the mass to remain on the track, even at the top of the loop? - see the full problem at https://physguide.neocities.org#loops2

Power

Wed, 01 Apr 2026 09:21:23 -0000

Coming soon! In the meantime, here's a good example from the Physics Aviary. - see the full problem at https://physguide.neocities.org#power

Moment of Inertia

Wed, 01 Apr 2026 09:06:23 -0000

A majorette twirls a four-ended baton with spheres on the ends of unusually light rods.

Find the moment of inertia with the axis through the center.
Find the moment of inertia with the baton spinning about the axis with the 0.2 kg masses.

- see the full problem at https://physguide.neocities.org#inertia

2-Block Pulley

Wed, 01 Apr 2026 08:51:23 -0000

Two blocks are joined by a light string that passes over a pulley with radius R and moment of inertia I. Block 1, with mass m₁, sits on a frictionless horizontal surface. Block 2, with mass m₂, hangs vertically from the pulley. The string forms a right angle, and the tension forces on either side are T₁ and T₂, respectively.

...Στ, in terms of R, T₁, and T₂.
...T₁ and T₂, in terms of m₁, m₂, R, α, and universal constants.
...I, in terms of m₁, m₂, R, α, and universal constants.

- see the full problem at https://physguide.neocities.org#twoblock

1-Block Pulley

Wed, 01 Apr 2026 08:36:23 -0000

Coming soon! In the meantime, here's a really good explanation. - see the full problem at https://physguide.neocities.org#oneblock