Explanation:
Let the speed of the car is v miles/h , therefore the speed of truck is ( v - 5 ) miles per hour .
Because time =
Thus in case of truck the time t₁ =
In case of car the time t₂ =
But time is the same in both cases , therefore
=
or 30 v = 1650
or v = 55 miles per hour
Therefore speed of car is 55 miles per hour
Thus speed of truck is 50 miles per hour
Your heart rate is higher than normal.
Answer:
B. blocks 2 & 3.
Block 1 has equal & opposite forces acting on it.
Block 2 has 5N on one side, 3N on the other. It will move in the direction the 5N of force is pushing.
Block 3 has no opposing force.
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