Answer:
The speed of the block when it is 5.00 m from the top of the incline is 3.04 m/s
Explanation:
given information:
s = 7.80 m
v = 3.8 m/s
if s = 5 m, v?
first we have to find the acceleration of the block using the following equation:
v² = v₀² + 2as, v₀² = 0 thus
3.8² = 2 a 7.8
a = 0.93
so, if s = 5m the final speed is
v² = 2 (0.93) (5)
= 9.26
v = √9.26
= 3.04 m/s
Answer:
d
Explanation:
it has high pressure of speed
The suns right ascension on the vernal equinox is (a) 0 hours
Answer:
(a) Ff = 3.95N
(b) Ff = 5N
Explanation:
(a) To find the friction force you use the second Newton law:

But you take into account the applied force and the opposite friction force:

you do Ff the subject of the formula and replace the values of the parameters:

(b) In the case of a motion with constant velocity you have that there is no acceleration. Hence:
