Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
A truck has to carry a load in the shortest time from one point to another at a distance L from the first.It can only start up or slow down at the same acceleration a. What maximum velocity must the truck attain to satisfy this condition ?
24
Aug
A truck has to carry a load in the shortest time from one point to another at a distance L from the first.It can only start up or slow down at the same acceleration a. What maximum velocity must the truck attain to satisfy this condition ? A point moves in xy-plane according to equation [...]
Tags:
A point moves in xy-plane according to equation x = at ,
the second for the third ,
Three points are located at the vertices of an equilateral triangle whose side equals a. They all start moving simultaneously with velocity v constant in modulus ,
with the first point heading continually for the second ,
y = at (l - bt) where a and b are positive constants and t is time. The instant at which velocity vector is at π/4 with acceleration vector is given by: ,
If a number of little droplets of water, each of radius `r`, coalesce to form a single drop of radius `R`, show that the rise in temperature will be given by `(3T)/J(1/r-1/R)` where `T` is the surface tension of water and `J` is the mechanical equivalent of heat.
24
Aug
If a number of little droplets of water, each of radius `r`, coalesce to form a single drop of radius `R`, show that the rise in temperature will be given by `(3T)/J(1/r-1/R)` where `T` is the surface tension of water and `J` is the mechanical equivalent of heat. coalesce to form a single drop of [...]
Three points are located at the vertices of an equilateral triangle whose side equals a. They all start moving simultaneously with velocity v constant in modulus, with the first point heading continually for the second, the second for the third, and the third for the first. How soon will the points converge?Read more on Sarthaks.com – https://www.sarthaks.com/85642/three-points-are-located-at-the-vertices-of-an-equilateral-triangle-whose-side-equals-a
24
Aug
Three points are located at the vertices of an equilateral triangle whose side equals a. They all start moving simultaneously with velocity v constant in modulus, with the first point heading continually for the second, the second for the third, and the third for the first. How soon will the points converge?Read more on Sarthaks.com [...]
Tags:
A point moves in xy-plane according to equation x = at ,
the second for the third ,
Three points are located at the vertices of an equilateral triangle whose side equals a. They all start moving simultaneously with velocity v constant in modulus ,
with the first point heading continually for the second ,
y = at (l - bt) where a and b are positive constants and t is time. The instant at which velocity vector is at π/4 with acceleration vector is given by: ,
An air bubble of radius 5mm rises through a vat of syrup at a steady speed 2mm//s. If the syrup has a density of 1.4xx10^(3)kg//m^(3), what is its velocity ?
24
Aug
An air bubble of radius 5mm rises through a vat of syrup at a steady speed 2mm//s. If the syrup has a density of 1.4xx10^(3)kg//m^(3), what is its velocity ? An air bubble of radius 5mm rises through a vat of syrup at a steady speed 2mm//s. If the syrup has a density of 1.4xx10^(3)kg//m^(3) [...]
A point moves in xy-plane according to equation x = at, y = at (l – bt) where a and b are positive constants and t is time. The instant at which velocity vector is at π/4 with acceleration vector is given by:
24
Aug
A point moves in xy-plane according to equation x = at, y = at (l – bt) where a and b are positive constants and t is time. The instant at which velocity vector is at π/4 with acceleration vector is given by: A point moves in xy-plane according to equation x = at y [...]
Two cars cover the distance between two stations in 2 hours. The first car covers the first half of the distance at 20 kmph and the second half at 60 kmph and the second car covers the distance with uniform acceleration, starting with a velocity of 10 kmph.At what instant/instants will the two cars have the same velocity ?
24
Aug
Two cars cover the distance between two stations in 2 hours. The first car covers the first half of the distance at 20 kmph and the second half at 60 kmph and the second car covers the distance with uniform acceleration, starting with a velocity of 10 kmph.At what instant/instants will the two cars have [...]
Eight identical droplets, each falling under gravity in the earth’s atmosphere with terminal velocity v, combine to form a single drop. The terminal velocity of single drop and drag force on it are calculated. Find the correct statement from the following.
24
Aug
Eight identical droplets, each falling under gravity in the earth’s atmosphere with terminal velocity v, combine to form a single drop. The terminal velocity of single drop and drag force on it are calculated. Find the correct statement from the following. combine to form a single drop. The terminal velocity of single drop and drag [...]
A man with a constant time of reaction can stop his car within 30 m when its speed is 72 kmph and within 10 m when its speed is 36 kmph.What is the distance within which he can stop his car when speeding at 54 kmph ?
24
Aug
A man with a constant time of reaction can stop his car within 30 m when its speed is 72 kmph and within 10 m when its speed is 36 kmph.What is the distance within which he can stop his car when speeding at 54 kmph ? A car accelerates from rest at a constant [...]
Eight identical droplets, each falling under gravity in the earth’s atmosphere with terminal velocity v, combine to form a single drop. The terminal velocity of single drop and drag force on it are calculated. Find the correct statement from the following.
24
Aug
Eight identical droplets, each falling under gravity in the earth’s atmosphere with terminal velocity v, combine to form a single drop. The terminal velocity of single drop and drag force on it are calculated. Find the correct statement from the following. combine to form a single drop. The terminal velocity of single drop and drag [...]
Two equal to masses are connected by a light string passing over a fixed frictionless pully. They are set in motion with uniform speed v. The mass going down is momentarily stopped and then released immediately. Calculate the time that will elapse before the string becomes tight again.
24
Aug
Two equal to masses are connected by a light string passing over a fixed frictionless pully. They are set in motion with uniform speed v. The mass going down is momentarily stopped and then released immediately. Calculate the time that will elapse before the string becomes tight again. A car accelerates from rest at a [...]