The second choice ... starts with the word "both" ... is the correct statement.
Answer;
= 520.833 m
Explanation and solution;
Assuming D is at 25 m/s; T's acc = 2.4 m/s2
let time be t and distance be d
for D,
25 × t = d
t = d/25 ----(1)
for T,
u=0
s= ut + 0.5 at^2
d = 0 + 0.5 × 2.4 × t^2
d = 1.2 t^2 ----(2)
(1) sub into (2)
d = 1.2 × [d/25]^2
d = 0.00192 d^2
d = 520.833 m
The answer is a) -9.8 m/s^2, then momentarily zero, then +9.8 m/s^2, that is because during this kind of movement we have a = g, a acceleration and g acceler. of gravity, from zero of the axis to upward a = -g (a and g are contrary by direction), the can stopes before it falls, it means a = o, and during the free fall a = g (same direction).
Answer:
The driving force behind plate tectonics is convection in the mantle. Hot material near the Earth's core rises, and colder mantle rock sinks. ... Geologists refer to the places where segments meet and divide as plate boundaries. They're thought to wrap around the Earth like seams on a baseball.
Explanation:
Hope this help!
