A cave diver enters a long underwater tunnel, when her displacement with respect to the entry point is 20m,she accidentally drop

Answer:

The driveway measures 4.98 m

Explanation:

We aim to find the length of the driveway, thus utilizing the following equations

W=ΔK.E    where W represents work and  ΔK.E   indicates the change in kinetic energy

Moreover,

also

W = F.d  where F is the force and d denotes distance

Given that

m = 2100 Kg  

θ= 20.0°  

V=3.8 m/s representing the car's speed at the bottom of the driveway

W=Δ K.E

As the x component of gravity is

thus

= 7038.77 N

And the Net force is

=

= 7038.77 - 4000 = 3038.77 N

) = 15162/3038.77 = 4.98 m