Aremote-controlled car is moving in a vacant parking lot. the velocity of the car as a function of time is given by v =[5.00m/s−(0.0180m/s^3)t^2]i^ + [2.00m/s+(0.550m/s^2)t]j^. a) what is the magnitude of the velocity of the car at t = 7.93 s ? b) what is the direction (in degrees counterclockwise from +x-axis) of the velocity of the car at t = 7.93 s ? c) what is the magnitude of the acceleration of the car at t = 7.93 s ? d) what is the direction (in degrees counterclockwise from +x-axis) of the acceleration of the car at t = 7.93 s ?

Equation of velocity is given as

at t = 7.93 s

so the magnitude of the velocity is given as

Part b)

the direction of the velocity is given as

part c)

for acceleration we know that

at t = 7.93 s

magnitude is given as

Part d)

for the direction of the motion

as we probably am aware that our atmosphere or air have various levels, each level has different gasses, and each gas has another porousness. at the point when the light originates from lower porousness to higher penetrability, it alters its course. with the goal that implies that when the light originates from the moon to the earth, it alters it's course a lot more occasions. it essentially implies that the state of the light piece of the moon is changed on the earth.

not copied too! hope this !

joke:

h o h o hope you have a merry christmas!