Answer:
Driving in a straight line at 60 miles per hour
Explanation:
In the first case there's an acceleration that modifies the direction of the movement.
In the second case there's a lineal acceleration that increases the speed of the car.
in the third case there's a negative acceleration that reduces the speed of the car.
On the third case the speed is constant so the acceleration is 0 mi/s^2
Answer:
speed of car = 95 km/h
speed of truck = 75 km/h
relative speed of car with respect to truck = 95 - 75 = 20 km/h
now we will convert it into m/s
now time to cross the truck will be given as
time = 19.8 s
so it will take 19.8 s to cross the truck
Explanation:
Volume = mass / density
Volume = 20 / 7.87
Volume = 2.54 (2 s.f)
Answer:
The work done by the wind as the boat moves 130 ft is (rounded) W= 31,550 ft-lb.
Explanation:
F= 300 lb < -54º
Fsouth= 300 lb * cos(36º)
Fsouth= 242.7 lb
d= 130 ft
W= F*d
W= 31551 ft-lb
