Answer:
force acting on the parent = 25 N .
Explanation:
According to third law of Newton , there is equal and opposite reaction to every action . Here force by the parent on child is action and the force by child on parent is reaction . The former is given as 25 N so force by child on parent will also be 25 N .
Answer is 25 N .
Distance is 90km,time 1 hr
distance 2 is 82km,time 5 hrs
average speed=total distance travelled/total time taken.
90+82=172/5+1=6
average speed=28.7km over hour
I believe the answer is A.
Answer: If there is a higher friction, the opposition force is higher so that it can reduce our speed. So, a factor that affects friction is the roughness or smoothness of the surface of the object. In comparison of the table with the fabric, the fabric will have a more opposition force. As the surface of the fabric is usually rougher than the surface of a smooth table. As there is more friction on a fabric, we will feel more opposition force on our finger tip.
Initial distance from which Harry starts to walk (x1) = - 14 meter
Final distance up to which Harry walks (x2) = - 52 meter
Time taken by Harry to walk from x1 to x2 = 38 second
Then
Velocity = (x2 - x1)/Time taken
= [- 52 - (-14)]/38 meter/second
= (-52 + 14)/38
= -(38/38) meter/second
= -1 meter/second.
So the velocity at which Harry walks is -1 meter per second. Hope you are satisfied with the procedure and the procedure is also clear enough for you.
