In: Physics
In a fireworks display, a firecracker is launched at an angle from the top of a high tower of height h0 = 50.0 m. As a result of the firecracker’s design, its position coordinates are of the form x(t) = A + Bt 2 and y(t) = C + Dt 3 , where A, B, C, and D are constants. The acceleration of the firecracker 1.00 second after firing is = (4.00î + 3.00ĵ) m/s 2 . Taking the origin of the coordinates to be at the base of the tower:
a. Find the constants A, B, C, and D, including their SI units.
b. At the instance the firecracker is launched, what are its velocity and acceleration?
c. What are the x and y components of the firecracker’s velocity 10.0 s after it is fired and with what speed is it moving?
d. What is the position vector (in component form) of the rocket 10.0 s after being fired?
using the given position coordinates after firecracker launches and taking origin to base of tower,constants can be calculated by differentiating coordinate and comparing with acceleration at t=1 sec.