It could be A :) not sure tho
ANY DENSE OBJECT
A mathematical equation for density is: Density = mass/volume or D = m/v. If something has a large mass compared to its volume, it has a high density. This is like a set of weights which can be small but heavy. But if an object has a small mass compared to its volume it has a lower density.
Pls give me a brainliest if this helps thx
السياره تسير و السفينه تمشي؟
Answer:
Work by normal force is 1335 J
Work by frictional force is -796.8 J
Explanation:
Work done due to applied force is given by the product of magnitude of force and distance pushed.
Work done=Fd
Substituting 178 N for F and 7.5 m for d then
Work done by normal force=178*7.5=1335 J
Work done due to frictional force will be product of normal force, distance and coefficient of kinetic friction.
Work due to frictional force is -0.19*57*9.81*7.5=-796.81725 J
The normal and gravity forces do not work since they are at 90 degrees.