F=200N ∆s=5m θ=0°. Find the work necessary to move the object.
What is 1000J
100
F=20.15J, ∆x=0.25m, solve for k
What is 80.6N/m
100
Calculate Epe if m=200g and h=37m
What is 72.52J
100
What energy is present while acceleration on a bike?
What is thermal energy and kinetic energy
100
m(g)
What is gravitational force (Fg)
200
F=620N Δs=160m Ѳ=42° What quantity of work is required to pull the sled 160m?
What is 73720 J
200
The spring constant for Spring 1=25N/m. The spring constant for Spring 2 is 1N/m. Both springs are combined parallel to each other. Calculate keq for both springs
What is 26N/m
200
Using the following information calculate Power. m=1.25g Δs=57.4m Δt=3.5sec
What is 200.9kW
200
An object is held at a 90° angle. No movement is to be found. Describe in a few words what this means.
What is no work being inputted
200
F(s)cosθ
What is Work (W)
300
A force acts at an angle of 30° with respect to the displacement's direction. What force must be applied to do 9600J of work over a 25m displacement?
What is 443.4N
300
k=160N/m F=4N Δs=?
What is 0.025m
300
calculate kinetic energy using the following information. m=15kg velocity=85km/h
What is Ek=4181.134J
300
To calculate this, one must first calculate an objects work or energy. The calculated number (in Joules) over time (in seconds) is equal to this (state the phenomena as well as the measure)
What is power (in Watts)
300
Em=Eg-?
What is Ek
400
A 640N force does 12500J of work over a 24m displacement. What is the angle between the force and the displacement?
What is 36°
400
Two springs are attached to each other. Spring 1 has a spring constant of 25N/m. The keq is equal to 15N/m. Find the spring constant for Spring 2.
What is k2=37.5N/m
400
A 0.2kg object is initially moving at a velocity of 50m/s and finally velocity of 0m/s. How much kinetic energy did the object loose?
What is 250J lost by the object
400
A basketball is bouncing out of the court. With each bounce, energy is "lost". Name the energies present within the system.
What is Mechanical energy and Thermal energy
400
F/∆x=
What is k
500
A student is pulling a sled at a constant velocity and with a 60N force. The sled's rope is not parallel to the ground; there is a height difference 90 cm and a length difference of 1.5 m. What is the quantity of work done by the student if he must travel a distance equal to 400m.
What is 19167.3J
500
A spring has a displacement of 6.3 cm by a force of 65N. What is the spring constant.
What is k=1032N/m
500
calculate the height with the following information. m=500kg Epg=602700J
What is h=123m
500
Assuming k is 2, Epe=(1/2)k(∆x^2) ⇾ Epe=∆x^2
What is the relation between spring elongation and elastic potential energy