Answer:
B. T
Explanation:
This is because the mass of the Bob does no relate to the period as given by the relationship
T = 2π(√L/g) so double mass is still T
Ok first of all we have to convert in km/hr=Speed
So 30min are 0.5hours
Then we use S= distance/time = 5km/0.5 hrs = 10km/hr —> Jill speed
Then S= d/t = 10km/0.5hrs = 20km/hr —> Scott speed
So Scott rode faster
Answer:
0.89 m
Explanation:
The time it takes to land is:
0.51 m / (1.2 m/s) = 0.425 s
The distance it falls in that time is:
Δy = v₀ t + ½ at²
Δy = (0 m/s) (0.425 s) + ½ (9.8 m/s²) (0.425 s)²
Δy = 0.89 m
Answer: 75 N
Because we're finding the force, we need to use F = ma. M (Mass) = 25 and A (Acceleration) = 3. Multiply 25(3) to get 75. So, you're answer should be 75 N.