Rahul is skateboarding as shown. What do you think will happen to him when his skateboard hits the speed breaker?​

Q. Handy Max Speed, Inc. makes custom skateboards for its customers. Two wooden skateboards and three composite skateboards cost $\$650$. Three wooden skateboards and one composite skateboard cost $\$450$. How much would Handy Max Speed charge a customer who purchases five wooden skateboards and four composite skateboards?

Q. What do you think will happen when you blow the air from the small gap between two balloons as shown in the figure?

Q.

A child is moving on a skateboard at the speed of 2 m/s. After a force acts on him, his speed becomes 3 m/s. Find the work done by the external force on the child, given the weight of the child is 20 kg.
Assume that the surface is on which the child is skateboarding is flat.

Q. Rahul is a farmer who considers snakes as his friend. Why do you think he does so?

Q. A boy with mass of $20kg$ is moving on a skateboard at 2 $m{s}^{-1}$. His speed increases to 4 $m{s}^{-1}$ when an external force is acted upon him. Find the work done by the external force on the boy?