Answer:
Force acting on the basketball will be 351.85 N
Explanation:
We have given velocity of baseball is changes from 50 m/sec to 45 m /sec in 0.00135 sec
So initial; velocity of the ball u = 50 m /sec
And final velocity of the ball v = 45 m /sec
Mass of the basketball m = 95 gram = 0.095 kg
Time taken t = 0.00135 sec
From third equation of motion v = u+at
So
a = 3703.70
We have to find the force needed to change the speed of the basketball
According to newtons law force is given by F = ma
So F = 0.095×3703.70 = 351.85 N
Answer:
Option C is the correct answer.
Explanation:
By Charles's law we have
V ∝ T
That is
Here given that
V₁ = 0.20 cubic meter
T₁ = 333 K
T₂ = 533 K
Substituting
New volume of the gas = 0.3198 m³
Option C is the correct answer.
Answer:
4
Explanation:
The weight of the rock is W = mg = (80 kg) (10 m/s²) = 800 N.
The mechanical advantage is therefore 800 N / 200 N = 4.
metals share the properties of metals such as malleable, ductile and lustrous