When answering the following questions, variables with
subscripts should be entered as if the subscript were part of the
variable name. (For example, xi would be
written as "xi" in your formula.)
Starting from the constant-acceleration kinematic equations, write
a formula that gives vi in terms of t,
xi, xf, and
a.
vi =
Starting from the constant-acceleration kinematic equations,
write a formula that gives xf in terms of
t, xi, vf, and
a.
xf =
formula for vi is
vi = {(xf-xi) -0.5*a*t2 }/t
formula for xf is
xf = xi +vf*t -0.5*a*t2
When answering the following questions, variables with subscripts should be entered as if the subscript were...
Starting from the constant-acceleration kinematic equations, write a formula that gives vf in terms of t, Xi, Xf, and a ubmit Answer Incorrect. Tries 3/8 Previous Tries
Starting from the constant-acceleration kinematic equations, write a formula that gives t in terms of xi, xf, vi, and vf.
6. Sean is running a 100 m dash. When the starter's pistol fires, he leaves the starting block and continues speeding up until 6 s into the race, when he reaches his top speed of 11 m/s. He holds this speed for 2 s; then his speed has slowed to 10 m/s by the time he crosses the finish line 11 s after he started the race. List of Equations (Use only if the problem must be solved in terms...
Vibrational Motion Introduction If an object is following Hooke’s Law, then Fnet = -kx = ma Since acceleration is the second derivative of position with respect to time, the relationship can be written as the differential equation: kx = m δ2xδt2/{"version":"1.1","math":"<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>k</mi><mi>x</mi><mo> </mo><mo>=</mo><mo> </mo><mi>m</mi><mo> </mo><mfrac bevelled="true"><mrow><msup><mi>δ</mi><mn>2</mn></msup><mi>x</mi></mrow><mrow><mi>δ</mi><msup><mi>t</mi><mn>2</mn></msup></mrow></mfrac></math>"} Methods for solving differential equations are beyond the scope of this course; in fact, a class in differential equations is usually a requirement for a degree in engineering or physics. However, the solution to this particular differential...