A girl throws a coin upwards with an initial velocity of 6 m/s from the top of a well. T depth of the well is 45 m. a) Find the maximum height the coin rise. b) How long does it take to get to maximum height? c) What is the velocity when the coin hits the bottom of the well? d) How long does it take for the coin to reach the bottom of the well from the starting point?

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Chapter1: Units, Trigonometry. And Vectors
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A girl throws a coin upwards with an initial velocity of 6 m/s from the top of a well. The
depth of the well is 45 m.
a) Find the maximum height the coin rise.
b) How long does it take to get to maximum height?
c) What is the velocity when the coin hits the bottom of the well?
d) How long does it take for the coin to reach the bottom of the well from the
starting
point?
6 m/s
45 m
Transcribed Image Text:A girl throws a coin upwards with an initial velocity of 6 m/s from the top of a well. The depth of the well is 45 m. a) Find the maximum height the coin rise. b) How long does it take to get to maximum height? c) What is the velocity when the coin hits the bottom of the well? d) How long does it take for the coin to reach the bottom of the well from the starting point? 6 m/s 45 m
Four resistances R1, R2, R3 and R4 are connected as shown in the diagram to a
voltage of 120 V.
R = 25 Q, R2 = 35 Q, R3 = 20 Q, R4 = 40 Q
%3D
%3D
%3D
i)
Calculate the total resistance and current in the circuit.
ii)
Find the current flowing through the circuit.
R1
R3
R
Transcribed Image Text:Four resistances R1, R2, R3 and R4 are connected as shown in the diagram to a voltage of 120 V. R = 25 Q, R2 = 35 Q, R3 = 20 Q, R4 = 40 Q %3D %3D %3D i) Calculate the total resistance and current in the circuit. ii) Find the current flowing through the circuit. R1 R3 R
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