use the formula
v= u+ at
v is final velocity , u is initial velocity , a is acceleration and t is time
put the values
20 = 0+ a×5
a = 4 m/s²
To find the relative frequencies, divide each frequency by the total number of throws - in this case, 100.
Red: 10/100=1/10=0.1
Yellow:35/100=0.35
Blue:48/100= 0.48
Misses: 7/100=0.07
The event of landing in the red region has a relative frequency of 0.1 which means the dart landed in the red region about 10% (0.1 x 100%) of the time.
Answer:
B. 4.5N
Explanation:
F = kx
Where
F = force
K = spring constant
x = compression
Given
K = 15N/m
x = 0.3m
Therefore
F = 15 x 0.3
F = 4.5N
The magnitude of the force that resists the stretching is 4.5N
