The striker throws the safety lever away from the grenade<span> body as it rotates to detonate the primer. The primer </span>explodes<span> and ignites the fuse The fuse burns down to the detonator, which </span>explodes<span> the main charge</span>
The acceleration of the race car is 6 m/s²
The given parameters;
initial velocity of the race car, u = 6 m/s
final velocity of the race car, v = 36 m/s
time of motion, t = 5 s
Acceleration is defined as the change in velocity per change in time of motion.
The acceleration of the race car is calculated as follows;
Thus, the acceleration of the race car is 6 m/s²
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The magnetic force on a charged particle is given as: F = qvBsinФ
B is the magnetic field.
q is the charge on the particle.
v is the velocity of the charged particle.
Ф is the angle between magnetic field (B) & the velocity of charge (v).
⇒ F = qvb sin Ф
Here, Ф = 90 degree.
and sin 90 = 1
Putting the values in the equation, we get,
F = 1.6 x 10^-19 C × 4.5 × 10^7 m/s × 1.6 T
= 11.52 × 10^-12N
= 1.2 x 10^-11 N up
Its about momentum. Momentum (p)=mass(m)xvelocity(v)
So for the first ball P=4x8=32kgm/s
For the second the momentum is zero as it is still.
So overall momentum its 32kgm/s
Momentum has to be conserved
After the collision the momentum of the 4kg ball is 4x4.8=19.2kgm/s
As momentum is conserved 32-19.2=12.8kgm/s remaining
So rearrange for velocity so v=p/m=12.8/1=12.8m/s for the 1kg ball
Answer:
the answer is kg
Explanation:
because the s.i unit for mass is kilogram
