Question

*PLZ HELP IT DO IN 3 HRS*
If a cart (6 kg) is moving at 1 m/s when it speeds up to 7 m/s in 2 seconds. What would the net force on the cart be?
A.) 0 N
B.) + 1 N
C.) + 2 N
D.) + 18 N

Answer 1

Answer:

D) +18N

Explanation:

Given Mass of cart = 6Kg

its initial velocity is= 1M/S

its final velocity is =6M/S

we know that acceleration is change in velocity divided by time taken

$\frac{(7 - 1)}{(2 - 0)} \\ \frac{6}{2} \\ 3$

So acceleration will be 3M/S²

We also know that force is Mass*acceleration

$6 \times 3 \\ + 18$

Hence the force will be +18N

Hope it helped you