Firstly let us get the time down to minutes from hours. Then the calculation will become easy.
1 hour and 45 minutes = (60 + 45) minutes
= 105 minutes
So
The distance traveled by the car in 105 minutes = 98 miles
Then
The distance traveled by the car in 60 minutes = (98/105) * 60 miles
= 5880/105 miles
= 56 miles
So the average speed of the car as can be seen from the above deduction is 56 miles per hour.
D.4
hope it helps have a great day!
Ans: a = 2.50 m/s^2
Explanation:
First convert the mass in its standard unit i.e. kilogram(kg):
2250 lbs = 1020.583kg
Next use Newton's Second law:
F = ma
Where F = 2552N
m = 1020.583kg
=> a = (2552/1020.583)
a = 2.50 m/s^2
Answer:
1130 m
Explanation:
Given:
a = 17.7 m/s²
v₀ = 119 m/s
v = 233 m/s
Find: Δx
v² = v₀² + 2aΔx
(233 m/s)² = (119 m/s)² + 2(17.7 m/s²) Δx
Δx ≈ 1130 m
Answer:0.931 s
Explanation:
Given
initial speed=1.1 m/s
height(h)=28 m
after 0.5 sec blue ball is thrown upward
Velocity of blue ball is 24.4 m/s
height with which blue ball is launched is 0.9 m
Total distance between two balls is 28-0.9=27.1 m
Let in t time red ball travels a distance of x m
--------1
for blue ball
-----2
Add 1 & 2
we get
t=0.931 s
after 0.931 sec two ball will be at same height
