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IB Diploma Physics Mastery Hub: The Industry Foundation Prac

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Q1Domain Verified
A projectile is launched with initial velocity $\vec{v}_0$ at an angle $\theta$ above the horizontal. Ignoring air resistance, which of the following statements accurately describes the projectile's acceleration at the highest point of its trajectory?
The acceleration is directed vertically downwards with a magnitude equal to $g$, the acceleration due to gravity.
The acceleration is directed vertically upwards with a magnitude equal to the initial vertical velocity component divided by the time to reach the highest point.
The acceleration is zero because the vertical component of velocity is momentarily zero.
The acceleration is directed horizontally forward with a magnitude equal to the initial horizontal velocity component.
Q2Domain Verified
A spring-loaded toy gun launches a small object vertically upwards. If the spring is compressed by a distance $x$ and the spring constant is $k$, what is the approximate initial speed $v$ of the object immediately after it leaves the gun, assuming the mass of the object is $m$?
$v = \sqrt{\frac{kx^2}{m}}$
$v = \sqrt{\frac{2kx}{m}}$
$v = \sqrt{\frac{2kx^2}{m}}$
$v = \sqrt{\frac{kx}{m}}$
Q3Domain Verified
A car of mass $m$ is moving at a constant speed $v$ on a horizontal road. The driver applies the brakes, and the car skids to a stop over a distance $d$. If the coefficient of kinetic friction between the tires and the road is $\mu_k$, what is the magnitude of the frictional force acting on the car?
$\frac{1}{2}mv^2/d$
$\mu_k N$, where $N$ is the normal force.
$\mu_k mg$
All of the above.

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This domain protocol is rigorously covered in our 2026 Elite Framework. Every mock reflects direct alignment with the official assessment criteria to eliminate performance gaps.

This domain protocol is rigorously covered in our 2026 Elite Framework. Every mock reflects direct alignment with the official assessment criteria to eliminate performance gaps.

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