Alice and Tom dive from an overhang into the lake below. Tom simply drops straight down from the edge, but Alice takes a running
1 answer:
You might be interested in
Answer:
The correct solution is:
(a)
(b)
(c)
(d)
Explanation:
The given values are:
Effective duration of the flash,
ζ = 0.25 s
Average power,
Average voltage,
Now,
(a)
⇒
On substituting the values, we get
⇒
⇒
(b)
⇒
then,
⇒
On substituting the values, we get
⇒
⇒
(c)
⇒
⇒
⇒
(d)
As we know,
⇒
⇒
⇒
⇒
Answer:
i) 0.7
ii) 1.39
iii) 0.6
Next time, when compiling a Physics question, ensure you put the unit of each measurement.
Explanation:
i) T = time of flight =
where u = speed = 4, A = 60 and g = acceleration due to gravity = 10 (It is a constant);
Subsituting the values, we have: T = = 0.7
ii) distance travel = Range = R =
where u = speed = 4, A = 60 and g = acceleration due to gravity = 10 (It is a constant);
Subsituting values, we have: R = = 1.39
iii) Maximum Height = H =
where u = speed = 4, A = 60 and g = acceleration due to gravity = 10 (It is a constant);
Subsituting values, we have: = 0.6