SPEED is
(distance covered) / (time to cover the distance) .
The car's average SPEED is
(100 km) / (15min)
= 6-2/3 km per minute.
VELOCITY is
(distance and direction between start-point and end-point)
divided by
(time to travel from start-point to end-point).
The car ended up at the starting point, so the distance between
stating-point and end-point is zero.
Velocity = (zero) / (time to travel from start-point to end-point)
= Zero .
Hi the answer to that question is you need to know the longitude and latitude
Answer:
a)Vr= 5 mph
b)Vr= 115 mph
Explanation:
Lets
your velocity ,u= 60 mph
velocity of truck ,v= 55 mph
When object are moving in opposite direction the relative velocity = u +v When object are moving in opposite direction the relative velocity = u - v
a)
Truck is moving in the same direction ,so the relative velocity
Vr= = u - v
Vr= 60 - 55
Vr= 5 mph
b)
Truck is moving in the opposite direction ,so the relative velocity
Vr= = u+v
Vr= 60 + 55
Vr= 115 mph
Power rating = volts x amps
Power rating = 7.5 x 120 = 900 watts
Answer: 900 watts
The ideal mechanical advantage of a lever (IMA) is given by:
Where:
Le = Effort of the arm
Lr = Resistance arm.
Therefore, we can increase the force adventage by increasing the effort arm or reducing the load arm
Answer:
a. Make the effort length longer.
