Question : 1
- mass (m) = 1000 kg
- velocity (v) = 5 m/s
=》

=》

=》

=》

kinetic energy = 12500 joules
Question : 2
- mass (m) = 10 kg
- velocity (v) = 5 m/s
=》

=》

=》

=》

kinetic energy = 125 joules
Question : 3
- mass = 100 kg
- velocity = 5 m/s
=》

=》

=》

=》

kinetic energy = 1250 joules
Answer:
coordinate will be
r = (1.33,4.33)
Explanation:
As we know that if a point will divide two given coordinates in m : n ratio
then in that case the point is given as


here we know that two points are
(-7, -4) and (3, 6)
and the ratio is given as 1 : 5
now from above formula we will have


so coordinate will be

Answer:
0.2695/s
Explanation:
Using the formula for calculating impulse
Impulse = m(v-u) = Ft
M is the mass
v is the final velocity.
u is the initial velocity
F is the force
t is the time
Get the time;
t = m(v-u)/F
t = 0.0055(220)/40
t = 0.0275s
Get the speed of the rifle
v = u+gt.
v = 0+9.8(0.0275).
v = 0.2695m/s
Hence the speed of the rifle is 0.2695m/s
Answer:
question 1: force
question 2: velocity or inertia
question 3: 0
Let's see

Now we know the formula of acceleration



Or
