Answer:
Force=35 N
Explanation:
Given data
mass m=10.0 kg
Gravitational field E=3.50 N/kg
To find
Force
Solution
From definition of gravitational field intensity.

Answer:
The radius is
Explanation:
From the question we are told that
The speed at which the race car moves is 
The centripetal acceleration is 
Generally the centripetal acceleration is mathematically represented as

=> 
=>