Velocity is a function of time and defined by both a magnitude and a direction. Often in physics problems, you will need to calculate the initial velocity (speed and direction) at which an object in question began to travel. There are multiple equations that can be used to determine initial velocity. Using the information given in a problem, you can determine the proper equation to use and easily answer your question. Sorry if this is not what your looking for
Weight = (mass) x (gravity)
= (75kg) x (9.8 m/s²)
= 735 kg-m/s²
= 735 newtons .
55 Kg has a weight of 55x9.8= 539 N
That is equal to the Normal force.
The static friction = 0.19 x 539 = 102.4 N
To solve this problem with the given elements we will apply the linear motion kinematic equations. We will start by calculating the time taken, with the vertical displacement data. Subsequently, with the components of the acceleration, we will obtain the magnitude of the total acceleration, to finally obtain the horizontal displacement with the data already found.
PART A) From vertical movement we know that the acceleration is equivalent to gravity and the displacement is 8m so the time taken to carry out the route would be

Here,


Replacing,


PART B) Now, Magnitude of acceleration



Thus, magnitude of net acceleration

PART C) Finally the displacement along horizontal direction is:



Therefore the distance traveled along the horizontal direction before it hits the ground is 3.098m
Answer:
(a) Maximum current through resistor is 1.43 A
(b) Maximum charge capacitor receives is
.
Explanation:
(a)
In an RC (resistor-capacitor) DC circuit, when charging, the current at any time, <em>t</em>, is given by

Here,
is the maximum current and <em>τ</em> represents time constant which is given by RC (the product of the resistance and capacitance).
The maximum current is given by

<em>V</em> is the emf of the battery and
is the effective resistance.
In this question,
= 10.0 Ω + 25.0 Ω = 35.0 Ω

(b) The maximum charge is given
<em>Q</em> = <em>CV</em>
where <em>C</em> is the capacitance of the capacitor
