a ball is dropped from the top of a tower 100m high. Simultaneously another ball is thrown upward with a speed of 50m/s. after what time do they cross each other
Answers
⇒ the time taken by both balls at point P has same time ' t ' seconds .
⇒ for first ball , that is in the diagram from A to P
S = ut + 1/2 at²
we know that u = 0 and a = g
⇒ ( 100 - x ) = (0)t + 1/2 gt²------------(1)
now, for the second ball from B to P in the diagram ,
S =
where u = 50 m/s and a = -g
therefore, x = 50(t) - 1/2gt² ------------------(2)
by adding equation (1) and (2) we will get ,
100 = 50 t
implies, t = 100 / 50
therefore t = 2 sec .
therefore the time that they cross each other is 2 seconds.
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the image that i had attached will show the pictorial representation of the experiment .
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Answer:
The time taken by both balls at point P has same time ' t ' seconds .
⇒ for first ball , that is in the diagram from A to P
S = ut + 1/2 at²
we know that u = 0 and a = g
⇒ ( 100 - x ) = (0)t + 1/2 gt²------------(1)
now, for the second ball from B to P in the diagram ,
S = t + 1/2 at²
where u = 50 m/s and a = -g
therefore, x = 50(t) - 1/2gt² ------------------(2)
by adding equation (1) and (2) we will get ,
100 = 50 t
implies, t = 100 / 50
therefore t = 2 sec .
Explanation:
In ordinary use and in kinematics, the speed (generally referred to as v) of an item is the importance of the exchange of its role over the years or the significance of the trade of its position according to unit of time; it's miles thus a scalar amount.The common speed of an object in an interval of time is the space travelled by using the object divided by means of the length of the c program languageperiod; the instantaneous speed is the restriction of the common velocity because the length of the time c program languageperiod strategies zero.
speed has the dimensions of distance divided by using time. The SI unit of velocity is the metre in step with 2nd (m/s), however the most common unit of velocity in ordinary utilization is the kilometre according to hour (km/h) or, in the US and the UK, miles in step with hour (mph). For air and marine tour, the knot is generally used.
The quickest feasible pace at which power or information can journey, according to big relativity, is the speed of light in a vacuum c = 299792458 metres consistent with 2nd (about 1079000000 km/h or 671000000 mph). count can't pretty reach the rate of light, as this will require an infinite amount of energy. In relativity physics, the idea of rapidity replaces the classical idea of velocity.
a ball is dropped from the top of a tower 100m high. Simultaneously another ball is thrown upward with a speed of 50m/s. after what time do they cross each other
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