Question

A ball is thrown vertically of wall with speed 20 metre per second from a tower speed of the particle at t = 1 second and t = 3 second​

Answer 1

Answer:

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"Initial velocity u = 20 m/s

Time (t) = 5 sec

Distance (s) = ?

Final velocity (v) = ?

G = 9.8 m/s^2

As per the formula,

S = -ut + 1/2 at^2

S = -20 * 5 + ½ * 9.8 * 5^2

S = -100 + 122.5

S = 22.5 m

And,

V = -u + gt = -20 + 9.8 * 5= -20 + 49 m/s = 29 m/s