The African American athletes did the following actions to show their anger:
a. The two athletes Tommie Smith and John Carlos raised their clenched fists ,wore black gloves and bowed their heads while the American national anthem was sung.
b. The Australian athlete who had won the silver medal wore a human rights T- shirt.
c. This way they tried to raise international attention against the human rights violation on the basis of colour in the World's oldest democracy that is US.
d. Their act symbolized black power and solidarity against racial discrimination.
It had the following impact:
a. International Olympic association held both the athletes Carlos and Smith guilty, their medals were taken back.
b. They were alleged for politicisng the entire event.
c. Their actions were condemned and were subjected to lot of criticism.
d. Norman was debarred to be part of next Olympics.
e. Their acts were largely responsible for drawing international attention against racism.
f. It gave a boost to civil rights movement in America.
g. In 2005, San Jose state university honoured them by installing Carlos and Smith's statues.