Answer:

Explanation:
Given that,
Initial speed of the cart, u = 0
Let F force is applied to the cart for time
after which the car has speed v. The force on an object is given by :
F = ma
m is the mass of the cart
We need to find the speed of second cart, if the same force is applied for the same time to a second cart with twice the mass. Force becomes,



So, the speed of second cart is half of the initial speed of first cart. So, the correct option is (b).
The force of friction is zero.
Using F = m a = the force needed is 6 N which means no friction can be acting.
Answer:
C
Explanation:
got a one hundred on the test
A block of mass 3 kg slides along a horizontal surface that has negligible friction except for one section, as shown above
11 is the answer for this question