An animation shows a planet orbiting a star. The instantaneous velocity
vector of the planet is shown on the animation and is blue. The instantaneous acceleration
vector is also shown and is orange. The units of time are 1 x 0
a) Is v _{x} at t = 3.00 x 10^{7} s positive, negative, or zero?
- Correct!b) Is v _{y} at t = 3.00 x 10^{7} s positive, negative, or zero?
- Correct!c) During the time interval between t = 0 and t = 4 x 10 ^{7} s, at what instant is v_{y} equal to zero and v_{x} in the negative direction?
t = d) Is a _{x} at t = 3.00 x 10^{7} s positive, negative, or zero?
- Correct!e) Is a _{y} at t = 3.00 x 10^{7} s positive, negative, or zero?
- Correct!f) During the time interval between t = 2.00 x 10 ^{7} s and t = 6.00 x 10^{7} s, at what instant is a_{y} equal to zero and a_{x} in the negative direction?
t = |