A Body Of Mass 40 G Is Moving With A Constant Velocity Of 2 Cm/'S On A Horizontal Friction Less Table The Force On The Body (Dynes )Is
Answers
Answer:
mass = 40 g = 40 *10^ -3kg
Force N = mg
= 40 *10^ -3 * 9.8 newtons { g = 9.8}
force = 392* 10^ -3 Newton .
to convert it into dynes multiply by 100000
or 10^5 .
= 392 *10^ -3 *10 ^ 5
= 392 * 10^ 2 dyne
Explanation:
a body of mass 40 grams is given which moves with constant velocity ( hence f= mass *change in velocity / time cannot be used here) . According to Newtons second law f = mass * acceleration.Since the body is in contact , therefore we will use concept of contact forces to calculate the force . when a body is in contact with ground and is being pressed by it , only then force will apply .
Answer:
since acceleration is 0 due to constant velocity force is also zero
Explanation: