Question
Physics Question on work, energy and power
An average frictional force of 80N is required to stop an object at a distance of 25m. If the initial speed of the object is 20m/s,the mass of the object is:
A
25Kg
B
12Kg
C
30Kg
D
40Kg
E
10Kg
Answer
10Kg
Explanation
Solution
The correct answer is (E): 10Kg