Answer:
Step-by-step explanation:
d
For a compression, a has to be less than one, and for a shift to the right, h has to be negative
the only one to meet both criteria is D
The answer is 1mm3bxxbcbxbbbxhxx
Step-by-step explanation:
Reason Is because 10^-2 is
1
-----
10^2
= 1/100
=0.01
Answer:
(a) D(t)= -4.9 t^2 + vt
(b) 10 sec
(c) 122.5m
(d) At t= 4sec, v= 9.8m/s (upwards) and at t= 9sec, v= 39.2m/s (downwards)
(e) -24.5m
(f) -49m/s (i.e. downwards)
(g) 0
Step-by-step explanation:
(b) Time in the air = 2v/g = 10sec
(c) Maximum height =
=122.5m
(d) Velocity at any time t = v -9.8t
So, at t= 4sec, velocity = 49 – 9.8(4) =9.8m/s
at t= 9sec, velocity = 49 – 9.8(9) = -39.2m/s
(e) Average velocity =
= -24.5m
(g) the stone is thrown vertically upwards, so no horizontal distance covered.