A12kg turtle rests on the bed of a zookeeper's truck, which is traveling down a country road at 55mi/h. the zookeeper spots a deer in the road, and slows to a stop in 12s. assuming constant acceleration, what is the minimum coefficient of static friction between the turtle and truck bed surface that is needed to prevent the turtle from sliding?

0.21

Explanation:

Given

mass of turtle

velocity of Truck

time taken to stop

using

where v=final velocity

u=initial velocity

a=acceleration

t=time

therefore 2.04 is the deceleration experienced by turtle which is countered by frictional force

 ,where coefficient of friction

continuous conducting path for current, power supply

initial speed when it is dropped is 150 ft/s

now at the same moment the acceleration due to gravity is perpendicular to its velocity

so as we know that

now we have centripetal acceleration a = 32 ft/s^2 as its perpendicular to velocity

while tangential acceleration at the same moment will be zero

so

now radius of curvature is given as

so the radius of curvature just after it is dropped is 703.125 ft