🔭 physics

1. **State the problem:** A body of weight $W$ gm wt is on a rough horizontal plane. A horizontal force of 100 gm wt makes it just about to move. When the plane is tilted at $45^\c

1. **State the problem:** Mr Manu travelled 720 km in 8 hours. We need to find his speed in meters per second (m/s). 2. **Convert distance to meters:** Since 1 km = 1000 m, the dis

1. **State the problem:** A 5 kg block rests on a rough inclined plane at 30° connected by a light string over a smooth pulley to a 6 kg hanging block. The system is in equilibrium

1. **State the problem:** Given $\tan \theta = \frac{4}{3}$, mass on the inclined plane $m_1 = 20$ gm, mass on the scale pan $m_2 = 7$ gm, and coefficient of static friction $\mu_s

1. **Problem statement:** Given the coefficient of static friction $\mu = \sqrt{3}$ between a body and an inclined rough plane, find the angle of inclination $\theta$ at which the

1. **State the problem:** A man walks 5 km east and then 12 km north. We need to find his displacement, which is the straight-line distance from his starting point to his final pos

1. সমস্যাটি হলো: একটি ট্রেন ঘন্টায় ৬০ কি.মি. বেগে চলছে এবং ব্রেক বসানোর পর ৫০ মি/সে² মন্দন প্রয়োগ করা হচ্ছে। ট্রেনটি কতদূর গিয়ে থেমে যাবে তা নির্ণয় করতে হবে। 2. প্রথমে ট্রেনের

1. Let's start by defining what vectors are. A vector is a quantity that has both magnitude and direction. 2. Vectors can be represented in component form as $\vec{v} = \langle v_x

1. **Problem statement:** Calculate the muscle force and joint forces in a forearm holding a weight of 40.0 N, given lever arms and forces.

1. **Stating the problem:** We analyze Adam's journey from the distance vs time graph. 2. **From 13:30 to 14:00:** Distance increases linearly from 0 km to 30 km over 30 minutes.

1. **Problem Statement:** We have a force diagram with two tension forces $T_A$ and $T_B$ each making a 60° angle with the vertical weight force $W$. We want to find the tensions $

1. **State the problem:** We analyze the compound pendulum experiment to find the acceleration due to gravity $g$ and radius of gyration $k$ from the graph of $h^2$ against $hT^2$.

1. The problem states that a van travels a distance of 258.75 meters in 11.5 seconds, and we need to find its speed. 2. The formula for speed is given by:

1. The problem is to understand the formula for speed. 2. Speed is defined as the distance travelled divided by the time taken.

1. **State the problem:** We need to find the magnitudes of two forces, say $F_1$ and $F_2$, given that their resultant is $R_1$ when they act at right angles (90°), and $R_2$ when

1. **Problem:** An automobile accelerates from rest at $1\ \text{m/s}^2$ for 30 s, continues at constant speed for 2 min, and then comes to a stop in 15 s. Find the total distance

1. Problem: An automobile accelerates from rest at 1 m/s² for 30 s, continues at constant speed for 2 min, then stops in 15 s. Find the total distance covered. Step 1: Calculate di

1. **State the problem:** We have a concave mirror with radius of curvature $R = 36$ cm.

1. **Problem statement:** A particle of mass $m_1$ lies on a smooth horizontal table connected by a light inextensible string over a smooth fixed pulley to a freely hanging particl

1. **State the problem:** We have a box of sugar cubes with a total mass of 500 g and containing 144 cubes. The box dimensions are 19 cm by 10 cm by 3 cm.

1. The problem is to understand why a negative moment means the net moment is counterclockwise. 2. In physics and engineering, moments (or torques) are vector quantities that cause