A: makes work easier to do.
Yes. Momentum is a vector, so several non-zero momenta can add up to zero. Consider for a simple example a mass of 10kg moving to the right at 5m/s, and another mass of 10kg moving to the left at 5m/s. These momenta each have a magnitude equal to 50 kg m/s but have opposite sign and so the total system's momentum is zero.
an object is more dense if there is more weight in the same area, its because of the amount of particles and the weight of the particles. eg, 1cm cubed of gold would weigh alot more than 1cm cubed polystyrene, so gold is more dense
Answer:

Explanation:
From the question we are told that:
Radius r=13
Coefficient of static friction \mu=0.67
Given the Centripetal concept
Generally the equation for Velocity v is mathematically given by



The value of the minimum speed (in m/s) for the cyclist to perform the stunt is Given as
