A bowling ball rolled with a force of 15 N accelerates at a rate of 3 m/sec2; a second ball rolled with the same force accelerates 4 m/sec2. What are the masses of the two balls?

Step-by-step explanation:F=ma

1st ball

15=m*3

15/3=m

m=5kg

2nd ball

f=ma

15=m*4

m=15/4

=3.7

c. because step up transformer steps up the input voltage i.e increases the input voltage  

the number of turns are greater on the secondary side of step up transformer  

transformer does not handle dc current