Answer:
Thus, the velocity at the time of strike is same as the velocity at the time of projection.
Explanation:
Let a projectile is projected vertically upwards with a speed of u and reaches to the maximum height H.
At maximum height , the speed is zero and then the projective comes back on the ground.
Use the third equation of motion
Now let the velocity at the time of strike is v'.
Use third equation of motion, here initial velocity is zero.
Thus, the velocity at the time of strike is same as the velocity at the time of projection.
Solid liquid gas
Thats is the three properties of matter
When setting up a circuit with temperature control, the first one you should consider for temperature control is a thermocouple. A thermocouple sends a signal for the temperature reading and received by another thermocouple to send another signal to adjust the temperature if it is below or above the set temperature.
Answer:
B) 6 W
Explanation:
First of all, we need to find the work done by the force. This is given by
where
F = 4 N is the magnitude of the force
d = 3 m is the distance through which the force is applied
Substituting,
Now we can find the power, which is given by
where
W = 12 J is the work done by the force
t = 2 s is the time taken
Substituting,