What is the reading of ammeter is adjoining circuit diagram.

Explanation

For one-dimensional force, impulse equals to area between force-time graph and the time axis. (a) `I_(0rarr10)=` Area of trapazium `OABC=75N-s`
(b) `I_(10rarr15)= -` Area of triangle `CDE=-25N-s`
(c ) `I_(0 rarr 15) =` Area of trapazium `OABC-` Area of triangle `CDE=50 N-s`