Explanation:
3
i believe that they are all going at 3.2 meters each, I did 4 times 0.8
Answer:
The acceleration of the total mass decreases by half (1/2)
Explanation:
Given;
acceleration of sled = 2 m/s²
From Newton's second law of motion, F = ma
⇒m = F/a
F is the force applied by Jenny
This force applied by Jenny should be the same, after Tommy jumps on the sled, but the acceleration will change.
F = m₁a₁ = m₂a₂
Since m₂ = 2m₁, then we calculate a₂
m₁a₁ = 2m₁a₂
a₂ = a₁/2
Therefore,The acceleration of the total mass decreases by half.
<span>(1KM x 1000M/KM)/ 850 M/s = 1.18 seconds</span>
The answer is 10 millimeters in one <span>centimeter</span>
Well, if there were no air resistance, then a helicopter couldn't fly. But let's do the physics and the Math anyway:
The way gravity works, the speed of a falling object increases at the rate of 9.8 m/s every second.
So, after falling for 12 seconds, its speed is (12 x 9.8) = <em>117.6 m/s </em>.
