AP Physics 1 Easy practice

A mass-spring system has period $T$. If the mass is doubled (and the spring is unchanged), the new period is:

An object undergoes SHM with amplitude $A=0.10\text{m}$ and angular frequency $\omega =5.0\text{rad/s}$. What is the maximum speed?

A car traveling at $20\text{m/s}$ brakes uniformly and stops in $4.0\text{s}$. What is the magnitude of its acceleration?

A mass on a spring oscillates with period $T=2.0\text{s}$. What is its frequency?

A heavy door is harder to push open if you push close to the hinge. The reason is that:

Which of the following collisions conserves both momentum AND kinetic energy?

A wheel of moment of inertia $I=0.50{\text{kg⋅m}}^2$ has a constant net torque of $2.0\text{N⋅m}$ applied for $4.0\text{s}$ starting from rest. What is its angular momentum at $t=4.0\text{s}$?

A $2.0\text{kg}$ block sits on a horizontal surface with coefficient of static friction ${\mu }_s=0.40$. Taking $g=10{\text{m/s}}^2$, what is the maximum horizontal force that can be applied without the block sliding?

A $0.20\text{kg}$ baseball moving at $40\text{m/s}$ is caught by a fielder. What is the magnitude of the impulse delivered to the ball during the catch?

A $0.50\text{kg}$ ball is dropped from rest from a height of $20\text{m}$. Ignoring air resistance and taking $g=10{\text{m/s}}^2$, what is its speed just before hitting the ground?

A $1.0\text{kg}$ cart moving at $4.0\text{m/s}$ collides and sticks to a $3.0\text{kg}$ cart at rest. What is the speed of the combined carts after the collision?

A swimming pool is $4.0\text{m}$ deep. With ${\rho }_{water}=1000{\text{kg/m}}^3$, $g=10{\text{m/s}}^2$, and atmospheric pressure $P_0=1.0\times 10^5\text{Pa}$, what is the absolute pressure at the bottom?

A $4.0\text{kg}$ box experiences three horizontal forces: $10\text{N}$ east, $6.0\text{N}$ west, and $4.0\text{N}$ east. What is the box's acceleration?

A $5.0\text{kg}$ block on a frictionless horizontal surface is pulled by a horizontal force of $20\text{N}$. What is the block's acceleration?

A force-vs-time graph shows a constant force of $8\text{N}$ acting on an object for $0.5\text{s}$, then $0\text{N}$ for the remaining time. What is the impulse delivered during the entire force application?