Correct me if I’m wrong but I think it’s A
Explanation:
Runner A has already reached about 50m in around 5s.
Answer:
The total she has to pay is R8500 plus the 5% interest.
PLEASE ADD BRAINEEST
The answer would be "mechanical". Hope I helped. :)
Answer:
Explanation:
Given
mass m collides elastically with floor and jump to its original height I .e.velocity of rebound is same as the initial velocity
Impulse imparted by steel ball to the ground is given by the change in momentum of steel ball

and impulse is product of average force and time
so we need time to calculate the average force. So, option e is correct