JEE 2021 | समतल में गति - L9 | speed in plane | Hindi Medium | Ravikant Sir | 7PM

I started on my bicycle at 7 a.m. to reach a certain place . After going a certain distance, my bicycle went out of order. Consequently, I rested for 35 minutes and came back to my house walking all the way. I reached my home at 1 p.m. If my cycling speed is 10 kmph and my walking speed is 1 kmph then on my bicycle I covered a distance of 4(61)/(66)k m b. 13 4/9k m c. 14 3/8k m d. 1(10)/(21)k m

A car can cover a distance of 420 km in 7 hours. How much speed should be increased to cover this distance in 6 hours ? कोई कार 7 h में 420 km की दूरी तय कर सकती है | दूरी को 6 h में तय करने के लिए गति कितनी बढ़ानी होगी?

There of the fundamental constant of physics are the universal gravitational constant, G=6.7xx10^(-11) m^(3) kg^(-) s^(-2) , the speed of light c=3.0xx10^(8) m//s and Planck's constant, h=6.6xx10^(-34) Js^(-1) . two particles A and V are projected in the vertical plane with same initial velocity u_(0) fro part (0,0) and (l,-h) towards each other as shwon in figure The path of particle A with respect to particle B will be –

There of the fundamental constant of physics are the universal gravitational constant, G=6.7xx10^(-11) m^(3) kg^(-) s^(-2) , the speed of light c=3.0xx10^(8) m//s and Planck's constant, h=6.6xx10^(-34) Js^(-1) . two particles A and V are projected in the vertical plane with same initial velocity u_(0) fro part (0,0) and (l,-h) towards each other as shwon in figure Minimum distance between particle A and B during motion

There of the fundamental constant of physics are the universal gravitational constant, G=6.7xx10^(-11) m^(3) kg^(-) s^(-2) , the speed of light c=3.0xx10^(8) m//s and Planck's constant, h=6.6xx10^(-34) Js^(-1) . two particles A and V are projected in the vertical plane with same initial velocity u_(0) fro part (0,0) and (l,-h) towards each other as shwon in figure The time when separation between A and B is minimum is

JEE Mains & Advanced | Chemistry - Ideal Gases By Vipin Sir | L3 English Medium

JEE Mains & Advanced | Chemistry - Ideal Gases By Vipin Sir | L4 English Medium

JEE Mains & Advanced | Chemistry - Ideal Gases By Vipin Sir | L1 English Medium

JEE Mains & Advanced | Chemistry - Ideal Gases By Vipin Sir | L2 English Medium

A boat moves downstream at the rate of 1 km in 7 1/2 minutes and upstream at the rate of 5km an hour. What is the speed (in km/hour) of the boat in the still water? एक नौका 7 1/2 मिनट में 1 किमी की गति से निचल प्रवाह में जाती है और 1 घंटे में 5 किमी को ग॒ति से ऊपरी प्रवाह में जाती है। स्थिर जल में नौका की गति (किमी/घंटा में) कितनी होगी?