Energy in Joules = Power in Watts * Time in seconds.
Energy = 1000 watt * 90 seconds.
Energy = 90 000 Joules.
Using conservation of momentum, we can solve for the force that the air bag exerts on the person.
Recall the equation for momentum (p):
We can solve for total momentum, then divide by out time interval. This gets us:
F = 4800N
Explanation:
It is given that,
Mass of platinum bar, m = 750 g
Length of the bar, l = 5 cm
Breadth of the bar, b = 4 cm
Width of the bar, h = 1.5 cm
Volume of the bar,
We need to find the density of the platinum bar. The density of any substance is given by :
So, the density of the platinum bar . Hence, this is the required solution.
At the same speed as the other ice cube