Answer:
The speed is 
.
(a) is correct option.
Explanation:
Given that,
Potential difference 
Speed 
If it were accelerated instead
Potential difference 
We need to calculate the speed
Using formula of initial work done on proton
We know that,
Put the value into the formula
....(I)
If it were accelerated instead through a potential difference of 
, then it would gain a speed will be given as :
Using an above formula,
Put the value of 
Hence, The speed is .
Answer:
1.25 m
0.5 s
Explanation:
Given:
v₀ = 5 m/s
v = 0 m/s
a = -10 m/s²
Find: Δy
v² = v₀² + 2aΔy
(0 m/s)² = (5 m/s)² + 2 (-10 m/s²) Δy
Δy = 1.25 m
Find: t
v = at + v₀
(0 m/s) = (-10 m/s²) t + (5 m/s)
t = 0.5 s
Yep, uh-huh, indeed, indubitably, and you better believe it.
The ball did accelerate.
Acceleration means any one of these:
-- speeding up
-- slowing down
-- changing direction .
The direction of the ball changed from east to west.
That's acceleration right there.
_____________________________________
Acceleration means any change of velocity.
Velocity is speed and direction.
The velocity of the ball changed from (40 km/hr east) to (40 km/hr west).
The change in velocity was 80 km/hr to the west.
Answer:
This is your answer
Explanation:
Actually I took this from go ogle
