Aperson in a kayak starts paddling, and it accelerates from 0 to 0.680 m/s in a distance of 0.428 m. if the combined mass of the person and the kayak is 82.7 kg, what is the magnitude of the net force acting on the kayak?

Net force, F = 44.66 N

Explanation:

It is given by,

Initial velocity of the person, u = 0

Final velocity of the person, v = 0.68 m/s

Distance, s = 0.428 m

Combined mass of the person and the kayak, m = 82.7 kg

We need to find the net force acting on the kayak i.e.

F = ma...........(1)

Firstly, we will calculate the value of "a" from third equation of motion as :

Put the value of a in equation (1) as :

F = 44.66 N

So, the net force acting on the kayak is 44.66 N. Hence, this is the required solution.

answer: the rock sample is a sedimentary rock.

explanation:

it is given that:

mass of rock sample, m = 2.7 g

volume of rock sample,

so, density of rock sample will be

since, the density of rock sample is . hence, the rock sample is a sedimentary rock, whose densities varies between .

in physics zero. in muscle fatigue could be high