resistance of 4 ohm, 10 ohm and 7 ohm is connected in parallel.
so net resistance in parallel is given by
now it is connected to 6 ohm resistance in series
so net resistance is given by
Answer:
if no external force is acting on it so it will remain in motion acoording to inertia ( inertia is a property of matter it continues in existing state either in rest or motion
Answer:
Force of 6250N is required to slow down the body to zero.
Explanation:
Speed(V)=20m/s
Initial speed (u) =0m/s
Mass(M)=1000kg
Time(t)=3.2seconds
Using first equation of motion to find the acceleration of the body:
V=U + at
20m/s=0 + a*3.2s
Therefore, a=(20m/s)/3.2s
a=6.25m/s^2
To find the force required to stop the body or get it down to zero:
Force(F)=mass x acceleration
F=(1000kg)*(6.25m/s^2)
F=6250N.
Therefore a force of 6250N is required to slow it down.
