🔭 physics

1. The problem involves verifying or comparing a calculated acceleration value with the given answer of $$2.2 \times 10^{2}$$ m/s\textsuperscript{2}. 2. Acceleration is typically c

1. **State the problem:** We need to find the average acceleration of a ball whose velocity changes from $25$ m/s west to $29$ m/s east in $0.25$ seconds.

1. **State the problem:** We need to find the volume in liters of sugar consumed in one year by an average person who consumes $3.0$ lbf of sugar per week, given the specific gravi

1. **Problem Statement:** Understand power, work, and efficiency through elevator and crane examples. 2. **Key Formulas:**

1. **Problem stated:** Determine whether a projectile comes to a complete stop at the highest point, and answer the example and practice projectile-motion questions. 2. **Key formu

1. **Problem Statement:** We have a 9V battery connected to two resistors, $1000\Omega$ and $3000\Omega$, in series. The battery current is $3\text{mA}$, and the current drawn from

1. **State the problem:** We have two springs, $S_1$ and $S_2$, attached to a rod. A mass hung on $S_1$ causes an extension $x$ and elastic potential energy $E$. The same mass hung

1. **State the problem:** We need to find the x- and y-components of the velocity of a ball at time $t = 2.0$ seconds. 2. **Identify the formulas:**

1. **Problem Statement:** A ball is thrown on Planet Exidor and follows a parabolic trajectory. At $t=1.0$ s, the velocity components are $v_x = 2.0$ m/s and $v_y = 2.2$ m/s. The h

1. **Newton's Three Laws:** 1. An object remains at rest or in uniform motion unless acted upon by a net external force: $$\vec{F}_{\text{net}} = 0 \Rightarrow \text{constant veloc

1. **State the problem:** We have an object starting from rest at point A with acceleration given by $$a(t) = 100 - 3t - \frac{t^2}{10}$$ where $t$ is in seconds and acceleration i

1. **State the problem:** We need to find the time $t$ when the rock hits the ground, which means when $y = 0$. 2. **Write the equation:** Given the formula for vertical position:

1. The problem is to understand why humans cannot travel at the speed of light using the equation $$e=mc^2$$. 2. The formula $$e=mc^2$$, derived by Einstein, shows the equivalence

1. **Problem Statement:** We are given a graph with three segments labeled A, B, and C, representing different motion types. We need to match each segment to the described physical

1. **State the problem:** Calculate the total ground displacement magnitude and the average ground speed of an airplane flying three legs with given airspeeds, headings, durations,

1. **State the problem:** A soccer ball is kicked at an angle of $45^\circ$ from the ground and hits a crossbar 10 m away horizontally and 2.5 m above the ground. We need to find t

1. **State the problem:** We are given the formula for sound intensity level in decibels:

1. **State the problem:** We need to find the value of $Ay$. 2. **Identify what $Ay$ represents:** Usually, $Ay$ denotes the $y$-component of a vector $A$ or a force $A$.

1. **State the problem:** Two particles A and B are dropped from rest from heights $h$ and $kh$ respectively, with B released $t$ seconds after A. Both hit the ground 5 seconds aft

1. **Problem Statement:** We need to find the magnitude of the component of a force acting perpendicular to the line $AO$.

1. **Stating the problem:** We want to list and understand every kind of force relevant to Year 13 Mechanics and Waves. 2. **Types of forces in mechanics:**