Physics, 11.11.2020 17:50 rowdycar313p0ao5k
A 4.00-kg particle moves along the x axis. Its position varies with time according to x= 5t +1 2.0t^3, where x is in meters and t is in seconds. Find:
a. the kinetic energy of the particle at any time t.
b. the acceleration of the particle and the force acting on it at time t.
c. the power being delivered to the particle at time t.
d. the work done on the particle in the interval t = 0 to t =5
Answers: 1
.
. The force acting on the particle at time t is 
.
.
(1)
- Translational kinetic energy, measured in joules.
- Mass of the particle, measured in kilograms. 
- Velocity of the particle, measured in meters per second. 
(2)
is the time, measured in seconds.
)
is the acceleration of the particle, measured in meters per square second. 
(4)
(5)
), measured in joules, is equal to the change of the kinetic energy of the particle:
(6)![W = [50+120\cdot (5)^{2}+72\cdot (5)^{4}]-[50+120\cdot (0)^{2}+72\cdot (0)^{4}]](/tpl/images/0888/0254/574bf.png)
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A 4.00-kg particle moves along the x axis. Its position varies with time according to x= 5t +1 2.0t^...
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