Acceleration occurs whenever the direction or the speed changes
Answer:
a)
b) 
Explanation:
The net force on the car must produce the centripetal acceleration necessary to make this circle, which is 
. At the top of the circle, the normal force and the weight point downwards (like the centripetal force should), while at the bottom the normal force points upwards (like the centripetal force should) and the weight downwards, so we have (taking the upwards direction as positive):
Which means:
The limit for falling off would be 
, so the minimum speed would be:
Answer:
1848.15J
Explanation:
KE =1/2 mv^2
Mass = 60kg, velocity =40km/h =11.11m/s
Hence
KE =30 x(11.1)^2 /2 = 1848.15J
<h2>Camels have 12 humps and lives at the North Pole </h2>
Six lost camels has 12 humps and lives at the north pole. The reason is that animal which possess hump are camels and they live at the north pole. Camel is used for travel purpose and for transfer goods from one place to another place.
Basically, a camel's hump is a large heap of fat. In a normal camel hump can be of 80 pounds that is equal to 35 kilograms on the scale. Human and many animals stocks their fat blended within the muscle tissue or beneath the skin layers. Camels are the sole living organism with a hump on its back.
Answer:12.5 W
Explanation:
work = force * distance
175 J = 25N * d
d = 7 meters ◄
power = work / time
P = 175J / 14s = 12.5 W ◄
