Answer:
4.5 m/s
Explanation:
so, you just divide the displacement or distance (202.5) by the time given (45)
202.5 ÷ 45 =4.5
Answer:
Part a)
so here the angle made by the string is independent of the mass
Part b)
Explanation:
Part a)
Let the string makes some angle with the vertical so we have force equation given as
so we will have
so here the angle made by the string is independent of the mass
Part b)
Now from above equation if we know that angle made by the string is
so we will have
You need to do spring constant x extension
Answer: P= W/t so P=50/20 =2.5 W
Answer:
Option 4 is correct ,
Explanation:
By the question,
Time (t) = 5 sec
accelation (a) = 3m/s^2
final velocity (Vf) = 28m/s
we know that ,
so, doing cross multiplication , we get:-