Determine the weight of an elephant whose mass is 1000 kilograms. a) 102 newtons eliminate b) 1000 newtons c) 2200 newtons d) 9800 newtons

Remember that force equals mass times acceleration, or: 
F = m * a 

We know that mass equals 1000kg, and the acceleration due to gravity is 9.8m/s²: 
F = 1000kg * 9.8m/s² 

So: 
F = 9800kg*m/s² 

Since one Newton = 1kg*m/s², we convert directly to Newtons: 
F = 9800N 

(D) is the right answer.