Ten one-rupee coins are put on top of each other on a table. Each coin has a mass m. which of the following statements is not true

Q: Ten one-rupee coins are put on top of each other on a table. Each coin has a mass m. which of the following statements is not true

(a) The force on the 6th coins (counted from the bottom) due to all the coins, on its top is equal to 4 mg (downwards)

(b) The force on 6th coin due to 7th coin is 4 mg (downwards)

(c) The reaction of the 6th coin on the 7th coin is 4mg (upward)

(d) The total force on the 10th coin is 9 mg (downward)

Ans: (d)