Answer:
20.65 m/s
Explanation:
You are gonna wanna use a calculator for this one
so we will write all the known variables:
h = 15.6 m
initial velocity (u) = 10.7 m/s
acceleration (a) = 10 m/s/s (gravity)
From the third equation of motion:
<em>v² - u² = 2ah</em>
<em>v² - (10.7)² = 2(10)(15.5)</em>
<em>v² - (10.7)² = 312</em>
<em>v² = 312 + 114.49</em>
<em>v² = 426.49</em>
v = 20.65 m/s
Answer:
a.
b.30.4 N
Explanation:
We are given that
Mass of block=m=1.1 kg
Mass of cart=M=3.4 kg
Total mass=m+M=1.1+3.4=4.5 Kg
1.We have to find the maximum acceleration such that block does not slide on the cart.
Normal force=
Substitute the values
Using
Hence, the maximum acceleration such that block does not slide on the cart=
b.
Using the formula
Hence, the magnitude of the force on the cart required to provide the maximum acceleration=30.4 N
Acceleration due to gravity depends directly on the mass of Earth and inversely to the square of radius of Earth.