On a two lane road
On a two lane road, car A is travelling with a speed of 36 km h^−1 . two cars B and C approach car A in opposite directions with a speed of 54 km h^−1 each. At a certain instant, when the distance AB is equal to AC, both being 1 km, B decides to overtake A before C does. What minimum acceleration of car B is required to avoid an accident?
27
Nov
On a two lane road, car A is travelling with a speed of 36 km h^−1 . two cars B and C approach car A in opposite directions with a speed of 54 km h^−1 each. At a certain instant, when the distance AB is equal to AC, both being 1 km, B decides to [...]
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B decides to overtake A before C does. What minimum acceleration of car B is required to avoid an accident? ,
both being 1 km ,
car A is travelling with a speed of 36 km h^−1 . two cars B and C approach car A in opposite directions with a speed of 54 km h^−1 each. At a certain instant ,
On a two lane road ,
when the distance AB is equal to AC ,
On a two-lane road, car A is travelling with a speed of 36 km/h. Two cars B and C approach car A in opposite directions with a speed fo 54 km/h each. At a cetain instant, when the distance AB is equal to AC
19
Sep
On a two-lane road, car A is travelling with a speed of 36 km/h. Two cars B and C approach car A in opposite directions with a speed fo 54 km/h each. At a cetain instant, when the distance AB is equal to AC car A is travelling with a speed of 36 km/h. Two [...]
On a two lane road, car A is travelling with a speed of 36 km h^(-1), Two cars B and C approach car A in opposite directions with a speed of 54 km h^(-1). At a certain instant, when the distance AB is equal to AC, both 1 km B decided to overtake A before Cdoes. What minimum acceleration of car B is required to avoid and accident?
27
Aug
On a two lane road, car A is travelling with a speed of 36 km h^(-1), Two cars B and C approach car A in opposite directions with a speed of 54 km h^(-1). At a certain instant, when the distance AB is equal to AC, both 1 km B decided to overtake A before [...]
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both 1 km B decided to overtake A before Cdoes. What minimum acceleration of car B is required to avoid and accident? ,
car A is travelling with a speed of 36 km h^(-1) ,
On a two lane road ,
Two cars B and C approach car A in opposite directions with a speed of 54 km h^(-1). At a certain instant ,
when the distance AB is equal to AC ,
The velocity of water current in a river changes with distance along the perpendicular to the river according to the law u = 2u0 dy for 0 ≤ y ≤ d2 where u0 = velocity in the mid-stream d = width of the river = 2u0d (d − y) for d2 ≤ y ≤ d. A boat travels from a point O on one block of the river to the opposite bank and its steering angle is constantly changed to keep its relative velocity perpendicular to the river current. Calculate the time in which the boat will reach the other bank. The velocity of the boat in still water is u0.
25
Aug
The velocity of water current in a river changes with distance along the perpendicular to the river according to the law u = 2u0 dy for 0 ≤ y ≤ d2 where u0 = velocity in the mid-stream d = width of the river = 2u0d (d − y) for d2 ≤ y ≤ d. [...]
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A train of length l=350m starts moving rectilinearly with constant acceleration w=3.0⋅10-2m/s2 ,
B decides to overtake A before C does.What minimum acceleration of car B ia required to avoid an accident? ,
both being 1 km ,
car A is travelling with a speed of 36km/h.Two cars B and C approach car A in opposite directions with a speed of 54km/h each. At a certain instant when the distance AB=AC ,
On a two lane road ,
t=30s after the start the locomotive headlight is switched on (event 1) ,
A short fired at a moving train (u=30 km/h) at an angle θ= arc sin1/5 with the track enters a compartment of dimension a×b=12m×14m through a corner away form the engine and passes out through the diagonally opposite corner. Calculate the speed of the shot.
25
Aug
A short fired at a moving train (u=30 km/h) at an angle θ= arc sin1/5 with the track enters a compartment of dimension a×b=12m×14m through a corner away form the engine and passes out through the diagonally opposite corner. Calculate the speed of the shot. A train of length l=350m starts moving rectilinearly with constant [...]
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A train of length l=350m starts moving rectilinearly with constant acceleration w=3.0⋅10-2m/s2 ,
B decides to overtake A before C does.What minimum acceleration of car B ia required to avoid an accident? ,
both being 1 km ,
car A is travelling with a speed of 36km/h.Two cars B and C approach car A in opposite directions with a speed of 54km/h each. At a certain instant when the distance AB=AC ,
On a two lane road ,
t=30s after the start the locomotive headlight is switched on (event 1) ,
A train of length l=350m starts moving rectilinearly with constant acceleration w=3.0⋅10-2m/s2, t=30s after the start the locomotive headlight is switched on (event 1), and τ=60s after that event the tail signal light is switched on (event 2). Find the distance between these events in the reference frames fixed to be train and to the Earth. How and at what constant velocity V relative to the Earth must a certain reference frame K move for the two events to occur in it at the same point?
25
Aug
A train of length l=350m starts moving rectilinearly with constant acceleration w=3.0⋅10-2m/s2, t=30s after the start the locomotive headlight is switched on (event 1), and τ=60s after that event the tail signal light is switched on (event 2). Find the distance between these events in the reference frames fixed to be train and to the [...]
Tags:
A train of length l=350m starts moving rectilinearly with constant acceleration w=3.0⋅10-2m/s2 ,
B decides to overtake A before C does.What minimum acceleration of car B ia required to avoid an accident? ,
both being 1 km ,
car A is travelling with a speed of 36km/h.Two cars B and C approach car A in opposite directions with a speed of 54km/h each. At a certain instant when the distance AB=AC ,
On a two lane road ,
t=30s after the start the locomotive headlight is switched on (event 1) ,
On a two lane road,car A is travelling with a speed of 36km/h.Two cars B and C approach car A in opposite directions with a speed of 54km/h each. At a certain instant when the distance AB=AC,both being 1 km,B decides to overtake A before C does.What minimum acceleration of car B ia required to avoid an accident?
24
Aug
On a two lane road,car A is travelling with a speed of 36km/h.Two cars B and C approach car A in opposite directions with a speed of 54km/h each. At a certain instant when the distance AB=AC,both being 1 km,B decides to overtake A before C does.What minimum acceleration of car B ia required to [...]
Tags:
B decides to overtake A before C does.What minimum acceleration of car B ia required to avoid an accident? ,
both being 1 km ,
car A is travelling with a speed of 36km/h.Two cars B and C approach car A in opposite directions with a speed of 54km/h each. At a certain instant when the distance AB=AC ,
On a two lane road ,