Question

1) What force would be needed to produce an acceleration of 4m/s² in a ball of mass 6 kg?

2) What is the acceleration produce by a force of 12 Newton exerted on an object of mass 3 kg?​

Answer 1

Answer:

1) Answer:—

To find :—

The force to produce an acceleration.

Formula applied:—

$\huge\boxed{{F=m×a}}$

Now , Solution:—

The force needed is to be calculated by

using the relation :

$force = mass \times acceleration$

or

$f = m \times a$

Hence, Force,f = ?

Mass, m= 6 kg

and, acceleration, a= 4 m/s²

Now, putting these value of m and a in the above equation, we get:

$f = 6 \times 4$

or

$force(f) = 24 \: n$

Thus, the force needed is of 24 newtons .

2)Answer:—

To find :—

Force required to impart to a car.

Formula applied:—

$\huge\boxed{{v=u+at}}$

$\huge\boxed{{F=m×a}}$

Now , Solution:—

Here, mass,m=1500 kg

Let us calculate the value of acceleration by using the first equation of motion.

Now, Initial velocity, u=0

Final velocity, v=30 m/s

and, Time taken, t=10 s

Now, putting these values in the equation :

we get, v = u + at

$30 = 0 + a \times 10$

$10a = 30$

or

$acceleration(a) = 3m {s}^{ - 2}$

Now, putting m = 1500 kg and a = 3 m/s² in equation :

$f = m \times a$

We get,

$f = 1500 \times 3n$

$= 4500n$

Thus, the force required in the case is of 4500 newtons.

Answer 2

Answer:

mark upper one as brainleast plz