Question

Pls help asap...urgently help needed!!!tia

Answer 1

Answer:

(a) v =  1536640/ m^2.

(b)  (i)   1186 m/s.

     (ii)   52.4g .

Step-by-step explanation:

(a)   The equation is v = k / m^2     where k is the constant of variation.

When m = 49, v = 640 so   640 = k / 49^2

k = 640 * 49^2

= 1,536,640.

Therefore the relation is v =  1536640/ m^2.

(b) (i)

When m = 36g,  the speed v = 1536640 / 36^2

= 1186 m/s.

(ii)   When the speed is  560 m/s :-

560 = 1536640 / m^2

m^2 = 1536640 / 560

=  2744

mass m = √2744

=  52.4g