Laws of Motion Lecture Notes PDF

YAKEEN BATCH Ch-03: Laws of Motion Lect-03  Today’s Goal Spring Force Pseudo Force  Spring Force 1. If a spring is stretched by distance x from its equilibrium position. 2. If a spring is compressed by x from its equilibrium position. Note: 1. For a massless sp...

YAKEEN BATCH Ch-03: Laws of Motion Lect-03  Today’s Goal Spring Force Pseudo Force  Spring Force 1. If a spring is stretched by distance x from its equilibrium position. 2. If a spring is compressed by x from its equilibrium position. Note: 1. For a massless spring the spring force Fsp is same at both ends. Q) Find the acceleration of 3 kg mass when acceleration of 2 kg mass is 2m/s2 as shown in figure. a) 1 m/s2 b) 3.33 m/s2 c) 3 m/s2 d) 2 m/s2 Q) A mass m is connected to a spring constant K as shown. Find the extension of the spring when the block is at equilibrium position. 𝒎𝒈 a) 𝟐𝑲 𝒎𝒈 b) 𝑲 𝟐𝒎𝒈 c) 𝑲 𝟑 𝒎𝒈 d) 𝟐 𝑲 Q) Find extension of spring in equilibrium condition 𝒎𝒈 a) 𝟐𝑲 𝒎𝒈 k b) 𝑲 𝟐𝒎𝒈 c) 𝑲 𝟑 𝒎𝒈 d) 𝟐 𝑲 Q)The masses are in motion , the Reading of Spring balance in kg will be Q) Find the extension in both the springs a) 0.1 m,0.2 m b) 0.2 m,0.2 m c) 0.2 m,0.3 m d) 0.3 m,0.3 m Q) a) g/2, g b) 3g/2 , g c) g/2 , 0 d) 3g/2 , 0 Q) a) g/2, g b) g,g c) g/2 , g/2 d) g,0 Q) Combination Of Spring 1)Series K1 2)Parallel K2 Q)  Parts Of Spring Q) Inertial and Non- Inertial Frame  Q) a) tan-1(g/a) b) tan-1(a/g) c) tan-1(a) d) tan-1(g) Q) a) 13.33 m/s2 b) 7.5 m/s2 c) 3.33 m/s2 d) 9.5 m/s2 Q) Apparent Weight of Person in Lift Q)  Web Version of PW App : https://physicswallah.live/ Thank You Download lecture notes of this lecture right after this session.