you have been elected as the perfect incharge of the school laboratory in your school , the senior one's are about to report for the first term .Many of these students have never heard about physics laboratory. Prepare a short speech to address the students for at least not more than 10 mins about the school laboratory

Aperson gives a shopping cart an initial push along a horizontal floor to get it moving, and then lets go. the cart travels forward along the floor, gradually slowing as it moves. consider the horizontal force(s) on the cart while it is moving forward and slowing. which of the following statements is correct? (a) both a forward and a backward force are acting on the cart, but the forward force is larger. (b) only a forward force is acting which diminishes with time. (c) both a forward and a backward force are acting on the cart, but the backward force is larger. (d) only a backward force is acting, no forward force.